Begoniaceae

Begonia L.

Last edited by Pieter B. Pelser & Ang Yu Pin, 11 October 2022
  1. Begonia acclivis Coyle, Edinburgh J. Bot. 67(1) (2010) 125; Type: Pipoly & Romero et al. PPI38054 (holo BRIT), Palawan: District of Tindogan, Mantalingajan Mt Range, Mt Gantung, 19-Aug-1996. Distribution: Endemic to the Philippines. PALAWAN. Notes: On ultramafic soils. Conservation status: Endangered (DAO 2017-11). Native.
  2. Begonia acuminatissima Merr., PJS 6 c (1911) Bot. 395; EPFP 3 (1923) 119. Distribution: Endemic to the Philippines. BALUT, ?CAMIGUIN, MINDANAO: Agusan del Norte, Davao del Sur. Notes: Lowland primary forests and stream embankments up to 400m. Native.
  3. Begonia adamsensis Magtoto & Rubite, Phytotaxa 343 (2018) 290; Type: L.M. Magtoto et al. 242 (NLUH, holo), Luzon: Ilocos Norte Adams, c. 308m, Mar-2016. Distribution: Endemic to the Philippines. LUZON: Ilocos Norte. Conservation status: Critically Endangered (Magtoto et al. 2018). Native.
  4. Begonia aequata A.Gray, Bot. Wilkes US Explor. Exped. (1854) 658; Merr., EPFP 3 (1923) 119. Distribution: Endemic to the Philippines. LUZON: Albay, Batangas, Camarines Sur, Laguna, Rizal, MINDANAO. Notes: In primary forests, 400-1000m, climbing on tree trunks. Locally common. Conservation status: Endangered (DAO 2017-11). Native.
  5. Begonia affinis Merr., PJS 7 c (1912) Bot. 308; EPFP 3 (1923) 119; Naive et al., Kew Bull. (2022); Type: Merrill 8251 (P, lecto; BM, K, L, isolecto), Mindanao: Zamboanga, Sax river, mountains back of San Ramon, 900m, 27-Nov-1911. Distribution: Endemic to the Philippines. MINDANAO: Zamboanga, Zamboanga Sibugay, Zamboanga del Norte, Zamboanga del Sur. Notes: Damp forests, c. 900m. Conservation status: Endangered (Naive et al. 2022). Native.
  6. Begonia agusanensis Merr., PJS 6 c (1911) Bot. 377; EPFP 3 (1923) 119; Type: BS 7312 Merrill (US, iso), Mindanao: Agusan del Norte Agusan River. Distribution: Endemic to the Philippines. MINDANAO: Agusan del Norte, Bukidnon. Notes: Along small streams in lowland primary forests. Native.
  7. Begonia alba Merr., PJS 10 c (1915) Bot. 45; EPFP 3 (1923) 120; Type: BS 19963 McGregor (US, iso), Luzon: Ifugao, Feb-1913. Distribution: Endemic to the Philippines. LUZON: Ifugao. Notes: Probably in forests above 1000m. Native.
  8. Begonia alvarezii Merr., PJS 6 c (1911) Bot. 377; EPFP 3 (1923) 120. Distribution: Endemic to the Philippines. LUZON: Apayao, Bulacan, Kalinga-Apayao, Nueva Ecija, Quezon, MINDORO. Notes: Low and medium elevation forest stream embankments. Native.
  9. Begonia amamampang Mazo & Rubite, Phytotaxa 538 (2022) 164; Type: K.R.F. Mazo 55 (PNH, holo), Mindanao: Zamboanga del Norte, Leon B. Postigo, Brgy Tinuyop, Sitio Binwangan, 498m, 28-Oct-2021. Distribution: Endemic to the Philippines. MINDANAO: Zamboanga del Norte. Conservation status: Critically Endangered (Mazo & Rubite 2022). Native.
  10. Begonia amparoae F.A.Blasco, Alejandro, Tandang & Rubite, Phytotaxa 549 (2022) 137, as 'amparoi'; Type: Blasco 13-945 (PNH, holo; STCH, iso), Mindanao: Surigao del Sur, Tandag City, Linungaw Twin Islands, 170m, 30-May-2013. Distribution: Endemic to the Philippines. MINDANAO: Surigao del Sur. Conservation status: Vulnerable (Blasco et al. 2022). Native.
  11. Begonia androturba Coyle, Edinburgh J. Bot. 66 (2009) 206; Type: Pipoly & Romero et al. 38072 (BRIT, holo), Palawan: Tindogan District, Mantalingajan Mt Range, Mt Gantung, Tagwaya River, 19-Aug-1996. Distribution: Endemic to the Philippines. PALAWAN. Conservation status: Endangered (DAO 2017-11). Native.
  12. Begonia angilogensis Merr., PJS 26 (1925) 477; EPFP 4 (1925) 250; Type: BS 40777 Ramos (US), Luzon: Rizal, Mt Angilog. Distribution: Endemic to the Philippines. LUZON: Rizal. Notes: Forested slopes, 1200m. Native.
  13. Begonia anisoptera Merr., PJS 6 c (1911) Bot. 398; EPFP 3 (1923) 120; Type: BS 5482 Merrill (NY, iso; US, isosyn), Mindanao: Zamboanga, 10-Oct-1906. Distribution: Endemic to the Philippines. MINDANAO: Zamboanga, Zamboanga del Norte (photos), Zamboanga del Sur. Notes: Semi-shaded cliffs and boulders in low elevation forests. Native.
  14. Begonia apayaoensis Merr., PJS 13 c (1918) Bot. 39; EPFP 3 (1923) 120; Type: BS 28403 Fenix (PNH, lecto; K, US, isolecto), Luzon: Apayao, Mt Sulu, 22-May-1917. Distribution: Endemic to the Philippines. LUZON: Apayao. Notes: Rocky shaded slopes, c. 1000m. Conservation status: Endangered (Rubite 2013; DAO 2017-11). Native.
  15. Begonia balangcodiae Rubite, S.H.Liu & K.F.Chung, Phytotaxa 407 (2019) 13; Type: K.-F. Chung 2012 (PNH, holo; HAST, iso), Luzon: Benguet, Kapangan, Brgy Sagubo, 1200m, 2-Feb-2012. Distribution: Endemic to the Philippines. LUZON: Benguet. Native.
  16. Begonia bangsamoro Buenavista, Pranada & Y.P.Ang, Phytotaxa 497 (2021) 41; Type: Buenavista DPB 001 (PNH, holo); Buenavista DPB 002 (PNH, ?iso), Mindanao: Lanao de Sur, Wao, Brgy Banga, Sitio Trese, 1197m, 9-Aug-20. Distribution: Endemic to the Philippines. MINDANAO: Bukidnon, Lanao del Sur, Misamis Oriental, Zamboanga del Sur. Notes: Note by P.B. Pelser (17-Apr-21): Buenavista DPB 002 is identified as the isotype of Begonia bangsamoro D.P.Buenavista, Pranada & Y.P.Ang. Despite the fact that it was given a different collecting number than the holotype, it is "a collection presumed to be of a single taxon made by the same collector(s) at the same time from a single locality" (Article 8.2; See Note 1 and Ex. 4). Conservation status: Endangered (Buenavista et al. 2021). Native.
    • ssp. bagasa Naive, Phytotaxa 559 (2022) 90; Type: Naive 127 (PNH, holo; HNUL, iso), Mindanao: Zamboanga del Sur, Tigbao, Timolan, Mt Timolan Protected Landscape, 830m, 31-Jan-2022. Distribution: Endemic to the Philippines. MINDANAO: Zamboanga del Sur. Conservation status: Least Concern (Naive et al. 2022). Native.
    • ssp. bangsamoro. Distribution: Endemic to the Philippines. MINDANAO: Bukidnon, Lanao del Sur, Misamis Oriental. Native.
  17. Begonia beijnenii Y.P.Ang, Tandang, Rubite & R.Bustam., Phytotaxa 455 (2020) 197; Type: Camangeg & Bustamante 2 (PNH, holo; USTH, PPC, iso), Palawan: San Vicente, Brgy Bigaho, Bigaho Falls, 30m, 19-Jan-2020. Distribution: Endemic to the Philippines. PALAWAN. Conservation status: Vulnerable D1 (Ang et al. 2020). Native.
  18. Begonia benitotanii Rubite, Tandang & C.W.Lin, Phytotaxa 513 (2021) 259; Type: Rubite 1003 (PNH, holo), Bucas Grande: Socorro, Brgy Sudlon, 102m, 19-Dec-2018. Distribution: Endemic to the Philippines. BUCAS GRANDE. Conservation status: Critically Endangered (B1ab(ii,iii,v)+2ab(i,ii,iii,v)) (Rubite et al. 2021). Native.
  19. Begonia beringii Mazo, Salatan & Rubite, Taiwania 67 (2022) 442; Type: Mazo 71 (PNH, holo; CMUH, iso), Mindanao: Zamboanga del Sur, Zamboanga City, Brgy Upper La Paz, Km 16, Western Mindanao State University-Experimental Forest Area, 934m, 10-Dec-2021. Distribution: Endemic to the Philippines. MINDANAO: Zamboanga del Sur. Conservation status: Data Deficient (Mazo et al. 2022). Native.
  20. Begonia biliranensis Merr., PJS 10 c (1915) Bot. 46; EPFP 3 (1923) 120; Type: BS 18822 McGregor (US, iso), Biliran, Jun-1914. Distribution: Endemic to the Philippines. BILIRAN, LEYTE, SAMAR. Notes: Epilithic in low and medium elevation forests. Native.
  21. Begonia binuangensis Merr., PJS 13 c (1918) Bot. 40; EPFP 3 (1923) 120; Type: BS 28813 Ramos & Edaño (PNH, lecto; K, US, isolecto), Luzon: Quezon, Mt Binuang, 11-May-1917. Distribution: Endemic to the Philippines. CATANDUANES, LUZON: Albay, Laguna, Quezon, Rizal, Sorsogon, MINDORO, NEGROS (photos), PANAY. Notes: Climbing on tree trunks in primary forests at medium elevation. Conservation status: Least Concern (Rubite 2013). Native.
  22. Begonia blancii M.Hughes & C.I Peng, Bot. Stud. (Taipei) 52 (2011) 204; Type: P. Blanc & R.R. Rubite 09-201 (PNH, holo; E, SING, iso), Palawan: En route to Bulalakaw Falls, about 25 km east of El Nido, 300-400m. Distribution: Endemic to the Philippines. PALAWAN. Notes: On small boulders in the shade of primary forest. Conservation status: Other Threatened Species (DAO 2017-11). Native.
  23. Begonia brevipes Merr., PJS 6 c (1911) Bot. 378; EPFP 3 (1923) 378; Type: BS 7431 Ramos (PNH, lecto, K, US, isolecto), Luzon: Cagayan, Mar-1909. Distribution: Endemic to the Philippines. LUZON: Cagayan, MINDANAO: Lanao. Notes: Lowland forests. Note by Pelser (27-Aug-14): according to Rubite (2013), this species is endemic to Cagayan Province. Conservation status: Endangered (Rubite 2013; DAO 2017-11). Native.
  24. Begonia burabod Rubite, C.Justo, P.Villaseñor & C.W.Lin, Phytotaxa 516 (2021) 269; Type: Rubite 994 (PNH, holo), Samar: Paranas, Brgy Tenani, Samar Island Natural Park, 150m, 7-Dec-2018. Distribution: Endemic to the Philippines. SAMAR. Conservation status: Least Concern (Rubite et al. 2021). Native.
  25. Begonia cabanillasii Y.P.Ang, Tandang, J.Agcaoili & R.Bustam., Phytotaxa 453 (2020) 245; Type: RAAB 0001 (=PNH 257805) (PNH, holo; USTH, PPC, iso), Palawan: El Nido, Brgy Maligaya, Biodiversity Assessment Management System (BAMS), 30m, 9-Jul-2019. Distribution: Endemic to the Philippines. PALAWAN. Conservation status: Critically Endangered C2a (i & ii) (Ang et al. 2020). Native.
  26. Begonia calcicola Merr., PJS 6 c (1911) Bot. 400; EPFP 3 (1923) 120; Type: BS 7062 Merrill (US, iso), Luzon: Rizal, Jan-1910. Distribution: Endemic to the Philippines. LUZON: Batangas, Laguna, Rizal, MINDANAO: Davao Oriental. Notes: Cliffs at low elevation. Native.
  27. Begonia camiguinensis Elmer, LPB 7 (1915) 2553; Type: Elmer 14222, Mindanao: Camiguin, Mambajao, Nov-1912. Distribution: Endemic to the Philippines. CAMIGUIN. Notes: Note by P.B. Pelser (10-Sep-19): Considered a synonym of Begonia acuminatissima Merr. by Rubite et al. (2013) and Nakamura et al. (2013), but it is phylogenetically distinct from this species in Hughes et al. (2018). Native.
  28. Begonia caramoanensis Rubite, Irabagon, Palacio, Y.P.Ang & R.Bustam., Phytotaxa 439 (2020) 291; Type: Rubite 988 (PNH, holo), Luzon: Camarines Sur, Caramoan, Brgy Caputatan, 2-Nov-2018. Distribution: Endemic to the Philippines. LUZON: Camarines Sur. Native.
  29. Begonia casiguranensis Quisumb. & Merr., PJS 37 (1928) 172; Type: BS 45277 Ramos & Edaño (PNH, holo; B, BM, NY, P, US, iso), Luzon: Aurora, Casiguran, Cabulig River, 28-May-1925. Distribution: Endemic to the Philippines. LUZON: Aurora. Notes: Along streams in open places at low elevation. Conservation status: Endangered (DAO 2017-11); Least Concern (Rubite et al. 2020). Native.
  30. Begonia castilloi Merr., PJS 13 c (1918) Bot. 38; EPFP 3 (1923) 120; Type: BS 22723 Castillo (US, iso), Luzon: Cagayan, Apr/May-1915. Distribution: Endemic to the Philippines. LUZON: Cagayan. Notes: Streamside cliffs, c. 100m. Native.
  31. Begonia caudata Merr., PJS 13 c (1918) Bot. 41; EPFP 3 (1923) 120; Type: BS 28414 Fenix (NY, US, iso), Luzon: Apayao, Mt Sulu, May-1917. Distribution: Endemic to the Philippines. LUZON: Apayao. Notes: Rocky forested slopes, climbing on trees. Native.
  32. Begonia chingipengii Rubite, Phytotaxa 164 (2014) 177; Type: C.I Peng, C.I Huang, Rubite & J.R.C. Callado 23368 (PNH, holo; CAS, E, HAST, HUH, MO, iso), Luzon: Nueva Ecija, Gabaldon, Brgy Malinao, Maplud River, ca. 415m, 25-Oct-2011. Distribution: Endemic to the Philippines. LUZON: Nueva Ecija. Conservation status: Vulnerable (DAO 2017-11). Native.
  33. Begonia chloroneura P.Wilkie & Sands, New Plantsman 6 (1999) 132. Distribution: Endemic to the Philippines. LUZON: Isabela, SULU ARCHIPELAGO. Native.
  34. Begonia ciliifera Merr., PJS 6 c (1911) Bot. 376; EPFP 3 (1923) 121; Coritico et al., PJS 151 (2022) 2438; Type: FB 9318 Whitford & Hutchinson (US, iso), Mindanao: Zamboanga del Sur, Port Banga, Jan/Feb-1908. Distribution: Endemic to the Philippines. MINDANAO: Bukidnon, Zamboanga, Zamboanga Sibugay, Zamboanga del Sur. Notes: Damp shaded ravines up to 400m. Native.
  35. Begonia cleopatrae Coyle, Edinburgh J. Bot. 67 (2010) 128; Type: P. Wilkie, M. Mendum, G.C.G. Argent, Q. Cronk, D.J. Middleton, R. Fuentes & R.V. Chavez 25373 (holo E), Palawan: Cleopatra’s Needle, 19-Jan-1998. Distribution: Endemic to the Philippines. PALAWAN. Conservation status: Vulnerable (DAO 2017-11). Native.
  36. Begonia collisiae Merr., PJS 14 (1919) 424; EPFP 3 (1923) 121; Type: BS 31469 Ramos & Edaño (US, iso), Panay: Aklan (formerly part of Capiz), Libacao, Apr/May-1918. Distribution: Endemic to the Philippines. PANAY. Notes: Forested stream embankment, c. 100m. Native.
  37. Begonia colorata Warb. in Perkins, Frag. Fl. Philipp. (1904) 51; Merr., EPFP 3 (1923) 121; Type: Warburg 14633 (B, lecto), Mindanao: Sibulan, Jul-1888. = Begonia bolsteri Merr., PJS 6 c (1911) Bot. 387; EPFP 3 (1923) 120; Type: Bolster 310 (B, lecto; K, PNH, US, isolecto), Mindanao: Surigao del Norte, Apr-1906. Distribution: Endemic to the Philippines. BILIRAN, LEYTE, LUZON: Laguna, Sorsogon, MINDANAO: Agusan del Norte, Agusan del Sur, Davao del Sur, Surigao. Notes: Along streams in primary lowland forests. Conservation status: Vulnerable D2 (Naive et al. 2018). Native.
  38. Begonia contracta Warb. in Perkins, Frag. Fl. Philipp. (1904) 54; Merr., EPFP 3 (1923) 121; Type: Warburg 13085 (B, holo), Luzon: Tayabas, Sampaloc, Feb-1911. Distribution: Endemic to the Philippines. BOHOL, LEYTE, LUZON: Bataan, Bulacan, Cagayan, Ilocos Norte, Isabela, Quezon, Rizal, Sorsogon, MINDANAO: Agusan del Norte, Zamboanga Sibugay, Zamboanga del Norte, MINDORO, NEGROS, PANAY, SAMAR. Conservation status: Least Concern (Rubite 2013). Native.
  39. Begonia copelandii Merr., PJS 6 c (1911) Bot. 401; EPFP 3 (1923) 121. Distribution: Endemic to the Philippines. LUZON: Cagayan, MINDANAO: Davao del Sur. Native.
  40. Begonia coronensis Merr., PJS 26 (1925) 480; EPFP 4 (1925) 250; Type: BS 41164 Ramos (P, lecto; BO, L, US, isolecto), Coron Island, 17-Sep-1922. Distribution: Endemic to the Philippines. CORON, CULION, PALAWAN. Notes: Lowland forests on limestone, on rocks and ledges along small streams. Conservation status: Vulnerable (DAO 2017-11). Native.
  41. Begonia crispipila Elmer, LPB 2 (1910) 737; Merr., EPFP 3 (1923) 121; Type: Elmer 8687 (NY, US, iso), Luzon: Benguet, Baguio, Mar-1907. Distribution: Endemic to the Philippines. LUZON: Apayao, Benguet. Native.
  42. Begonia cucullata Willd., Sp. Pl. 4 (1805) 414; Ardi & Thomas, Edinburgh J. Bot. 79 (2022) 47; Type: from Brasil. Distribution: S America. Naturalized.
  43. Begonia culasiensis C.I Peng, Rubite, C.W.Lin & K.F.Chung, Botanical Studies 58 (2017) 28; Type: C.I Peng 23759, with K.-F. Chung, C.I Huang & R.R. Rubite (PNH, holo; HAST, iso), Panay: Antique, Culasi, Brgy Buenavista, Kipot Falls, c. 50m, 18-Jun-2012. Distribution: Endemic to the Philippines. PANAY. Conservation status: Vulnerable D2 (Peng et al. 2017). Native.
  44. Begonia cumingiana (Klotzsch) A.DC., Prodr. 151 (1864) 320; Merr., EPFP 3 (1923) 121; ≡ Petermannia cumingiana Klotzsch, Abh. Königl. Akad. Wiss. Berlin 1854 (1855) 195; Type: Cuming 856 (K, lecto; B, BM, E, FI, K, P, isolecto), Luzon: Albay. Distribution: Endemic to the Philippines. CATANDUANES, LUZON: Albay, Benguet, Cagayan, Rizal, Sorsogon. Conservation status: Vulnerable (Rubite 2013; DAO 2017-11). Native.
  45. Begonia cumingii A.Gray, Bot. Wilkes US Explor. Exped. (1854) 658; Merr., EPFP 3 (1923) 121. = Begonia philippinensis A.DC., Prodromus 15 (1864) 320; Type: Cuming 1897 (K, lecto; FI, isolecto), Luzon: Tayabas, Mt Banahaw, 1811. Distribution: Endemic to the Philippines. LUZON: Albay, Batangas, Benguet, Camarines Sur, Ifugao, Laguna, Mountain Province, Quezon, Rizal, PANAY. Conservation status: Least Concern (Rubite 2013). Native.
  46. Begonia depressinerva Pranada, Phytotaxa 425 (2019) 155; Type: M.E.C. Salvador PUPH 0098 with C.J.S. Luna (PNH, holo; CAHUP, FEUH, iso), Luzon: Quezon, General Nakar, Brgy Pesa along Kidadayaig Falls, 150m, 3-Dec-2018. Distribution: Endemic to the Philippines. LUZON: Quezon. Conservation status: Vulnerable D1 (Pranada et al. 2019). Native.
  47. Begonia dimorpha S.Julia, Sandakania 20 (2015) 59; Paguntalan et al., Project Tawsi: Sulu Hornbill Project (2020) 41; Type: from Borneo. Distribution: Borneo, Philippines. TAWI-TAWI. Native.
  48. Begonia × dinglensis Rubite, C.I Peng, Koh Nakam. & K.F.Chung, Phytotaxa 494 (2021) 158; Type: Peng 23859 (PNH, holo; HAST, iso), Panay: Iloilo, Dingle, Bulabog Puti-an National Park, 200m, 24-Jun-2012. Distribution: Endemic to the Philippines. PANAY. Notes: Hybrid of Begonia camiguinensis and Begonia nigritarum. Conservation status: Vulnerable (Nakamura et al. 2021). Native.
  49. Begonia dolichotricha Merr., PJS 17 (1920) 292; EPFP 3 (1923) 122; Type: BS 33926 Ramos & Edaño (US, iso), Luzon: Camarines Norte, Mt Bagacay, Nov/Dec-1918. Distribution: Endemic to the Philippines. LUZON: Aurora, Camarines Norte (photos), Camarines Sur, Quirino. Native.
  50. Begonia droseroides C.I Peng, Rubite & C.W.Lin, Phytotaxa 347 (2018) 201; Type: Peng 23418 (PNH, holo; HAST, iso), Luzon: Aurora, Maria Aurora, Brgy Zazal, Cabualan River, Bazal-Baubo Watershed, c. 165 m, 15°48’44”N, 121°24’23”E, 28-Oct-2011. Distribution: Endemic to the Philippines. LUZON: Aurora, Isabela (photos). Native.
  51. Begonia edanoi Merr., PJS 13 c (1918) Bot. 314; EPFP 3 (1923) 122; Type: BS 29374 Ramos & Edaño (NY, US, iso), Luzon: Rizal, Mt Susong-Dalaga, Aug-1917. Distribution: Endemic to the Philippines. LUZON: Rizal. Notes: Primary forests at medium elevation, climbing on trees. Native.
  52. Begonia elatostematoides Merr., PJS 7 c (1912) Bot. 309; EPFP 3 (1923) 122; Mazo et al., Taiwania 67 (2022) 447; Type: BS 8232 Merrill (US, lecto; PNH, isolecto), Mindanao: Zamboanga, Sax River Mtns, Nov-1911. Distribution: Endemic to the Philippines. MINDANAO: Zamboanga, Zamboanga del Sur. Notes: Damp shaded ravines and forested slopes, 800-1000m. Conservation status: Data Deficient (Mazo et al. 2022). Native.
  53. Begonia elmeri Merr., PJS 13 c (1918) Bot. 39; EPFP 3 (1923) 122; ≡ Begonia peltata Elmer, LPB 7 (1915) 2556, nom. illeg., non A.DC.; Type: Elmer 14183. Distribution: Endemic to the Philippines. MINDANAO: Agusan del Norte. Notes: Cliffs in shaded ravines, c. 1050m. Native.
  54. Begonia elnidoensis C.I Peng, Rubite & C.W.Lin, PLOS ONE 13 (2018) e0194877:10; Type: C.I Peng 23508 with K.-F. Chung, C.I Huang & R.R. Rubite (PNH, holo; HAST, iso), Palawan: El Nido, 2m, 4-Nov-2011. Distribution: Endemic to the Philippines. PALAWAN. Conservation status: Least Concern (Hughes et al. 2018). Native.
  55. Begonia esculenta Merr., PJS 6 c (1911) Bot. 389; EPFP 3 (1923) 122; Type: BS 9449 C.B.Rob. (US, iso), Luzon: Quezon, Infanta, Aug-1909. Distribution: Endemic to the Philippines. LUZON: Ilocos Norte, Quezon. Notes: Mossy forests, c. 800m. Native.
  56. Begonia everettii Merr., PJS 6 c (1911) Bot. 390; EPFP 3 (1923) 122; Type: FB 5587 Everett, Negros: Sicaba, Daluapan River, 12-Nov-1906. Distribution: Endemic to the Philippines. LUZON: Ifugao, Tayabas, NEGROS, PANAY. Native.
  57. Begonia fasciculiflora Merr., PJS 6 c (1911) Bot. 376; EPFP 3 (1923) 122. Distribution: Endemic to the Philippines. LUZON: Cagayan, MINDANAO: Zamboanga Sibugay. Native.
  58. Begonia fenicis Merr., PJS 3 c (1908) Bot. 421; EPFP 3 (1923) 122; Type: BS 3619 Fenix (US, isosyn), Batanes: May/June-1907. Distribution: Philippines, Ryukyu Isls, Taiwan. BABUYAN ISLS, BATAN. Native.
  59. Begonia francisabuidii Dela Cruz, S.R.Concepcion & Y.P.Ang, Taiwania 67 (2022) 224; Type: Dela Cruz 1 with Concepcion (PNH, holo; CEBU, iso), Luzon: Albay, Ligao City, Brgy Oma-Oma, Nahulugang-Patok Falls, 187m, 6-Nov-2021. Distribution: Endemic to the Philippines. LUZON: Albay. Conservation status: Critically Endangered (Dela Cruz et al. 2022). Native.
  60. Begonia gabaldonensis Rubite, C.I Peng & C.W.Lin, Phytotaxa 347 (2018) 204; Type: Peng 23356 (PNH, holo; HAST, iso), Luzon: Nueva Ecija, Gabaldon, Brgy Malinao, Maplud River, c. 525 m, 15°29’43”N, 121°20’54”E, 25-Oct-2011. Distribution: Endemic to the Philippines. LUZON: Nueva Ecija. Native.
  61. Begonia gampura Mazo & Rubite, Taiwania 67 (2022) 444; Type: Mazo 60 (PNH, holo; CMUH, iso), Mindanao: Zamboanga del Norte, Leon B. Postigo, Brgy Tinuyop, Molina River, 590m, 21-Nov-21. Distribution: Endemic to the Philippines. MINDANAO: Zamboanga del Norte. Conservation status: Critically Endangered (Mazo et al. 2022). Native.
  62. Begonia georgei Coyle, Edinburgh J. Bot. 66 (2009) 209; Type: Argent & Romero PPI 9669 (also distributed as Argent & Romero 92165; BISH, holo; BRIT, E, iso), Palawan: Brookes Point, Mt Mantalingahan, 4-Mar-1992. Distribution: Endemic to the Philippines. PALAWAN. Conservation status: Vulnerable (DAO 2017-11). Native.
  63. Begonia gironellae C.I Peng, Rubite & C.W.Lin, PLOS ONE 13 (2018) e0194877:16; Type: C.I Peng 24579 with C.I Huang, R.R. Rubite, E.P. Gironella, M.A. Suzuki & T. Cardona (PNH, holo; HAST, iso), Palawan: Puerto Princesa City, Brgy Tanabag, Tanabag River, c. 30m, 19-Dec-2014. Distribution: Endemic to the Philippines. PALAWAN. Conservation status: Data Deficient (Hughes et al. 2018). Native.
  64. Begonia gitingensis Elmer, LPB 2 (1910) 738; Merr., EPFP 3 (1923) 122; Type: Elmer 12368 (US, NY, iso), Sibuyan: Mt Guiting-guiting, Apr-1910. Distribution: Endemic to the Philippines. SIBUYAN. Notes: Shaded ravines along small streams, c. 525m. Native.
  65. Begonia gracilipes Merr., PJS 6 c (1911) Bot. 405; EPFP 3 (1923) 123; Type: BS 7395 Ramos (PNH, lecto; B, K, US, isolecto), Luzon: Cagayan, Claveria, 13-Mar-1909. Distribution: Endemic to the Philippines. CATANDUANES, LUZON: Cagayan. Notes: Climbing on trees in damp primary forests at low elevation. Note by Pelser (27-Aug-14): only known from Cagayan according to Rubite (2013). Conservation status: Endangered (Rubite 2013; DAO 2017-11). Native.
  66. Begonia gutierrezii Coyle, Edinburgh J. Bot. 67(1) (2010) 131; Type: H. Gutierrez & R.A. Espiritu PNH80739 (PNH, holo), Palawan: Lipuun Point, May/Jun-1963. Distribution: Endemic to the Philippines. PALAWAN. Conservation status: Vulnerable (DAO 2017-11). Native.
  67. Begonia halconensis Merr., PJS 6 c (1911) Bot. 385; EPFP 3 (1923) 123; Type: Merrill 5515 (NY, US, iso), Mindoro: Mindoro Oriental, Mt Halcon, Nov-1906. Distribution: Endemic to the Philippines. MINDORO. Native.
  68. Begonia hemicardia Elmer ex Rubite, Edinburgh J. Bot. 79(403) (2022) 2; Merr., EPFP 3 (1923) 120, nom. inval., nom. nud.; Type: Rubite, Evangelista, Huang & Liu 297 (PNH, holo; HAST, PNH, iso), Luzon: Sorsogon, Bulusan, Bulusan Volcano Natural Park, 350m, 24-May-2006. Distribution: Endemic to the Philippines. LUZON: Sorsogon. Conservation status: Endangered (Rubite et al. 2022). Native.
  69. Begonia hernandioides Merr., PJS 6 c (1911) Bot. 392; EPFP 3 (1923) 123; Type: BS 7393 Ramos (US, iso), Luzon: Cagayan, Mar-1909. Distribution: Endemic to the Philippines. LUZON: Cagayan, Tayabas. Notes: On cliffs and bowlers in shaded ravines at low or medium elevation. Native.
  70. Begonia hirtella Link, Enum. Hort. Berol. Alt. 2 (1822) 296. Naturalized.
  71. Begonia hughesii Rubite & C.I Peng, Botanical Studies 56 (2015) 19; Type: C.I Peng 23466, with K.-F. Chung, C.I Huang, R.R. Rubite (PNH, holo; HAST, iso), Palawan: Puerto Princesa City, Puerto Princesa Subterranean River National Park, c. 5m, 2-Nov-2011. Distribution: Endemic to the Philippines. PALAWAN. Conservation status: Least Concern (Rubite et al. 2015). Native.
  72. Begonia incisa A.DC., Ann. Sci. Nat. Bot. iv, 11 (1859) 129; Merr., EPFP 3 (1923) 123. Distribution: Endemic to the Philippines. LUZON: Camarines, Camarines Sur, Ilocos Norte, Laguna, Pampanga, Quezon, MINDORO, NEGROS, PANAY. Conservation status: Least Concern (Rubite 2013). Native.
  73. Begonia isabelensis Quisumb. & Merr., PJS 37 (1928) 173; Type: BS 47207 Ramos & Edaño (NY, US, iso), Luzon: Isabela, San Mariano, 14-Mar-1926. Distribution: Endemic to the Philippines. LUZON: Isabela. Notes: On rocks along forested streams, c. 400m. Native.
  74. Begonia jagori Warb. in Perkins, Frag. Fl. Philipp. (1904) 54; Merr., EPFP 3 (1923) 123. Distribution: Endemic to the Philippines. LUZON: Tayabas, MINDORO. Notes: In primary forests at low elevation. Native.
  75. Begonia × kapangan Rubite, S.H.Liu & K.F.Chung, Phytotaxa 407 (2019) 13; Type: K.-F. Chung 2013 (PNH, holo; HAST, iso), Luzon: Benguet, Kapangan, Brgy Sagubo, 1200m, 16°36’43” N, 120°33’48” E, 2-Feb-2012. Distribution: Endemic to the Philippines. LUZON: Benguet. Notes: Hybrid between Begonia balangcodiae Rubite, S.H.Liu & K.F.Chung and Begonia crispipila Elmer. Native.
  76. Begonia klemmei Merr., PJS 6 c (1911) Bot. 402; EPFP 3 (1923) 123; Type: FB 5677 Klemme (US, iso), Luzon: Mountain Province (prev. Lepanto), Oct/Nov-1906. Distribution: Endemic to the Philippines. LUZON: Benguet, Mountain Province. Native.
  77. Begonia lacera Merr., PJS 10 c (1915) Bot. 49; EPFP 3 (1923) 123. Distribution: Endemic to the Philippines. BASILAN. Notes: Low elevation primary forests. Native.
  78. Begonia lagunensis Elmer, LPB 2 (1910) 735; Merr., EPFP 3 (1923) 123; Type: Elmer 9327 (PNH, lecto, BM, E, L, US, NY, isolecto), Luzon: Quezon, Lucban, May-1907. Distribution: Endemic to the Philippines. LUZON: Camarines Sur, Laguna, Quezon, Rizal, MINDORO, NEGROS, SAMAR. Notes: Note by Pelser (27-Aug-14): according to Rubite (2013) endemic to Luzon. Conservation status: Not Threatened (Rubite 2013); Other Threatened Species (DAO 2017-11). Native.
  79. Begonia lancifolia Merr., PJS 10 c (1915) Bot. 48; EPFP 3 (1923) 123; Type: BS 16162 Reillo. Distribution: Endemic to the Philippines. BASILAN, MINDANAO: Bukidnon, SULU ARCHIPELAGO. Notes: Low elevation primary forests. Native.
  80. Begonia lancilimba Merr., PJS 14 (1919) 424; EPFP 3 (1923) 123; Type: BS 32232 McGregor (US, iso), Panay: Antique, May/Aug-1918. Distribution: Endemic to the Philippines. PANAY. Native.
  81. Begonia lanuzaensis F.A.Blasco, Rubite, J.C.Cortes & Alejandro, Phytotaxa 523 (2021) 204; Type: Freddie A. Blasco 13-910 (PNH, holo; USTH, iso), Mindanao: Surigao del Sur, Lanuza, Mt Nabuywang, Poblacion, 100 m, 27-May-2013. Distribution: Endemic to the Philippines. MINDANAO: Surigao del Sur. Conservation status: Vulnerable (D2) (Blasco et al. 2021). Native.
  82. Begonia latistipula Merr., PJS 10 c (1915) Bot. 51; EPFP 3 (1923) 123; Type: BS 15367 Ramos (US, iso), Leyte: Dagami, Aug-1912. Distribution: Endemic to the Philippines. BILIRAN, LEYTE, LUZON: Quezon, SAMAR. Native.
  83. Begonia leptantha C.B.Rob., PJS 6 c (1911) Bot. 211; EPFP 3 (1923) 124. Distribution: Endemic to the Philippines. LUZON: Quezon, POLILLO. Native.
  84. Begonia leucosticta Warb. in Perkins, Frag. Fl. Philipp. (1904) 55; Merr., EPFP 3 (1923) 124. Distribution: Endemic to the Philippines. LUZON: Apayao, Benguet, Isabela, MINDANAO: Surigao del Norte. Native.
  85. Begonia littleri Merr., PJS 6 c (1911) Bot. 379; EPFP 3 (1923) 124. Distribution: Endemic to the Philippines. MINDANAO: Zamboanga, SULU ARCHIPELAGO. Native.
  86. Begonia loheri Merr., PJS 6 c (1911) Bot. 382; EPFP 3 (1923) 124. Distribution: Endemic to the Philippines. LUZON: Quezon, Rizal. Native.
  87. Begonia longibractea Merr., PJS 17 (1920) 293; EPFP 3 (1923) 124, as ‘longibracteata’; Type: BS 34870 Ramos & Pascasio (US, iso), Siargao, Jun-1919. Distribution: Endemic to the Philippines. SIARGAO. Notes: Forested slopes at low elevation. Native.
  88. Begonia longinoda Merr., PJS 6 c (1911) Bot. 397; EPFP 3 (1923) 124; Type: BS 13372 Ramos, Luzon: Quezon, Tagkawayan, c. 200m, Mar-1911. Distribution: Endemic to the Philippines. LUZON: Quezon. Notes: Lowland primary forests, c. 200m. Native.
  89. Begonia longiscapa Warb. in Perkins, Frag. Fl. Philipp. (1904) 52; Merr., EPFP 3 (1923) 124. Distribution: Endemic to the Philippines. BOHOL, LEYTE, LUZON: Sorsogon, MINDANAO: Davao del Sur, Surigao, SAMAR. Native.
  90. Begonia longistipula Merr., PJS 6 c (1911) Bot. 379; EPFP 3 (1923) 124. Distribution: Endemic to the Philippines. MINDANAO: Surigao. Native.
  91. Begonia longivillosa A.DC., Ann. Sci. Nat. Bot. iv, 11 (1859) 130; Merr., EPFP 3 (1923) 124. Distribution: Endemic to the Philippines. Native.
  92. Begonia luzonensis Warb. in Perkins, Frag. Fl. Philipp. (1904) 52; Merr., EPFP 3 (1923) 1. = Begonia bakeri Elmer, LPB 10 (1939) 3706, nom. illeg., non C.DC. Distribution: Endemic to the Philippines. LUZON: Bataan, Cagayan, Laguna, Rizal, MINDORO. Native.
  93. Begonia macgregorii Merr., PJS 7 c (1912) Bot. 310; EPFP 3 (1923) 124; Type: BS 11334 McGregor (PNH, lecto; B, BM, L, P, US, isolecto), Luzon: Nueva Vizcaya, Dupax, Mar-1912. Distribution: Endemic to the Philippines. LUZON: Isabela, Nueva Vizcaya, SAMAR. Notes: Along small streams in primary forests at medium elevation. Conservation status: Endangered (Rubite 2013; DAO 2017-11). Native.
  94. Begonia madulidii Rubite, C.I Peng & C.W.Lin, Phytotaxa 347 (2018) 207; Type: R. Rubite 290 (PNH, holo; HAST, iso), Luzon: Camarines Sur, Sangay, c. 60 m, 22-May-2006. Distribution: Endemic to the Philippines. LUZON: Camarines Sur. Native.
  95. Begonia makuruyot M.G.Rule, Y.P.Ang, Rubite, Docot, R.Bustam. & A.S.Rob., Phytotaxa 470 (2020) 227; Type: C.B.M. Domingo, R.V.A. Docot, and M.G.Q. Rule SDN19-006 (PNH, holo; CAHUP, FEUH iso), Mindanao: Surigao del Norte, Claver, Brgy Sapa, beside Daywan River, 11-Jul-2019. Distribution: Endemic to the Philippines. MINDANAO: Surigao del Norte. Conservation status: Critically Endangered B1ab(ii,iii,v)+2ab(i,ii,iii,v) (Rule et al. 2020). Native.
  96. Begonia malindangensis Merr., PJS 6 c (1911) Bot. 391; EPFP 3 (1923) 125; Naive et al., Phytotaxa 564 (2022) 266; Type: FB 4563 Mearns & Hutchinson (P, lecto; B, BO, NY, P, SING, US, iso), Mindanao: Misamis Occidental, Mt Malindang, May-1906. Distribution: Endemic to the Philippines. MINDANAO: Bukidnon, Cotabato, Davao, Davao del Sur, Misamis Occidental. Conservation status: Least Concern (Naive et al. 2022). Native.
  97. Begonia manillensis A.DC., Ann. Sci. Nat. Bot. iv, 11 (1859) 129; Merr., EPFP 3 (1923) 125. Distribution: Endemic to the Philippines. LUZON: Batangas (photos), Benguet, Bulacan, Camarines Sur, Laguna (photos), NCR, Rizal, ROMBLON. Native.
  98. Begonia mearnsii Merr., PJS 6 c (1911) Bot. 383; EPFP 3 (1923) 125. Distribution: Endemic to the Philippines. MINDANAO: Lanao. Native.
  99. Begonia megacarpa Merr., PJS 9 c (1914) Bot. 378; EPFP 3 (1923) 125. Distribution: Endemic to the Philippines. LEYTE, LUZON: Aurora, Camarines, Nueva Ecija, Rizal, MINDANAO: Agusan, Agusan del Norte. Notes: Climbing on trees in primary forests at low and medium elevation. Native.
  100. Begonia megalantha Merr., PJS 10 c (1915) Bot. 47; EPFP 3 (1923) 125; Type: McGregor BS 19860 (PNH, lecto), Luzon: Ifuago, Mt Polis, Feb-1913. Distribution: Endemic to the Philippines. LUZON: Aurora, Ifugao, Kalinga, Mountain Province. Conservation status: Endangered (Rubite 2013; DAO 2017-11). Native.
  101. Begonia merrilliana C.I Peng, Rubite, C.W.Lin & K.F.Chung, Botanical Studies 58 (2017) 28; Type: C.I Peng 23765, with K.-F. Chung, C.I Huang & R.R. Rubite (PNH, holo; HAST, iso), Panay: Antique, Culasi, Brgy Flores, c. 225m, 19-Jun-2012. Distribution: Endemic to the Philippines. PANAY. Conservation status: Vulnerable D2 (Peng et al. 2017). Native.
  102. Begonia merrittii Merr., PJS 5 c (1910) Bot. 365; EPFP 3 (1923) 125; Type: Elmer 6254 (K, lecto; B, BO, K, P, US, isolecto), Luzon: Benguet, Mt Sto. Tomas, May-1904. Distribution: Endemic to the Philippines. LUZON: Benguet, Ifugao, Mountain Province, Nueva Vizcaya. Conservation status: Least Concern (Rubite 2013). Native.
  103. Begonia mindanaensis Warb. in Perkins, Frag. Fl. Philipp. (1904) 55; Merr., EPFP 3 (1923) 125; Naive et al., Phytotaxa 564 (2022) 270; Type: Warburg 14633 (B, lecto), Mindananao: Davao, Mt Dagatpan, Jun-1888. Distribution: Endemic to the Philippines. LEYTE, MINDANAO: Agusan del Norte, Bukidnon, Davao del Sur, Surigao, Zamboanga, Zamboanga Sibugay. Conservation status: Endangered (Naive et al. 2022). Native.
  104. Begonia mindorensis Merr., PJS 6 c (1911) Bot. 396; EPFP 3 (1923) 125; Type: A.D.E. Elmer 12857 (B, neo; BM, BO, E, FI, K, MICH, P, U, isoneo), Palawan: Puerto Princesa, Mt Pulgar, Mar-1921. = Begonia pinamalayensis Merr., PJS 26 (1925) 482; EPFP 4 (1925) 250; Type: BS 40856 Ramos (B, lecto; L, P, US, isolecto), Mindoro: Mindoro Oriental, Pinamalayan. Distribution: Endemic to the Philippines. CALAMIANES, LUZON: Quezon, Sorsogon, MINDANAO: Agusan del Norte, MINDORO, PALAWAN, PANAY. Notes: Along forest streams. Native.
  105. Begonia naemma Y.P.Ang, Aumentado & Magtoto, Edinburgh J. Bot 79 (390) (2022) 2; Type: PTI-PCWFR1-0021 (PNH, holo; CAHUP, PNH, iso), Luzon: Nueva Ecija, Pantabangan–Carranglan Watershed Forest Reserve, 1200m, 12-Mar-2021. Distribution: Endemic to the Philippines. LUZON: Nueva Ecija. Conservation status: Endangered (Ang et al. 2022). Native.
  106. Begonia negrosensis Elmer, LPB 2 (1910) 736; Merr., EPFP 3 (1923) 125; Type: Elmer 9903 (NY, MO, US, iso), Negros: Negros Oriental, Cuernos Mtns., Jun-1908. Distribution: Endemic to the Philippines. LUZON: Ifugao, NEGROS, SAMAR. Native.
  107. Begonia neopurpurea L.B.Sm. & Wassh., Phytologia 52 (1983) 4. = Begonia purpurea Elmer, LPB 10 (1939) 3707, nom. illeg., non Sw.; Type: Elmer 16565 (NY, iso), Luzon: Sorsogon, Mt Bulusan, Jul-1916. Distribution: Endemic to the Philippines. LUZON: Sorsogon. Native.
  108. Begonia nigritarum Steud., Nomencl. (1821) 104; Merr., EPFP 3 (1923) 126. = Begonia merrillii Warb. in Perkins, Frag. Fl. Philipp. (1904) 53. Distribution: Endemic to the Philippines. BOHOL, CULION, LEYTE, LUZON: Bataan, Batangas, Bulacan, Cavite, Isabela, Kalinga-Apayao, Laguna, Nueva Vizcaya, Pangasinan, Quezon, Rizal, MINDORO, PALAWAN, PANAY. Native.
  109. Begonia normaaguilarae M.D.Angeles, Rubite & Tandang, Phytotaxa 541 (2022) 51, as 'normaaguilariae'; Type: Delos Angeles 273 (PNH, holo; CAHUP, iso), Samar: Paranas, Samar Island Natural Park, 120m, 2-Jun-2021. Distribution: Endemic to the Philippines. SAMAR. Conservation status: Critically Endangered (Delos Angeles et al. 2022). Native.
  110. Begonia oblongata Merr., PJS 7 c (1912) Bot. 310; EPFP 3 (1923) 126; Naive et al., Kew Bull. (2022); Type: Merrill 8166 (US, lecto; BM, K, isolecto), Mindanao: Zamboanga District, mountains back of Zamboanga, 100m, 6-Dec-1911. Distribution: Endemic to the Philippines. MINDANAO: Zamboanga, Zamboanga Sibugay, Zamboanga del Norte, Zamboanga del Sur. Conservation status: Endangered (Naive et al. 2022). Native.
  111. Begonia obscuribracteata Y.P.Ang, W.Caban. & M.N.Tamayo, Gard. Bull. Singapore 73 (2021) 401; Type: L.M. Camangeg & W.P. Cabanillas PTI-5 (PNH, holo; FEUH, PPC, iso), Palawan: Dumaran, Brgy Sta. Teresita, 14-Sep-2020. Distribution: Endemic to the Philippines. PALAWAN. Conservation status: Endangered (Camangeg et al. 2021). Native.
  112. Begonia obtusifolia Merr., PJS 14 (1919) 425; EPFP 3 (1923) 126; Type: BS 30803 Ramos & Edaño (US, iso), Panay: Capiz, Mt Macosolon. Distribution: Endemic to the Philippines. PANAY. Notes: On boulders in damp forests, c. 150m. Native.
  113. Begonia olganunezae Naive & Cababan, Taiwania 66 (2021) 434; Type: Cababan 3 (PNH, holo; HNUL, Bukidnon State University Herbarium, iso), Mindanao: Bukidnon, Valencia City, Brgy Lourdes, 1523m, 10-June-2021. Distribution: Endemic to the Philippines. MINDANAO: Bukidnon, Misamis Oriental (photos). Conservation status: Endangered B2ab(ii,iii,v) (Naive & Cababan 2021). Native.
  114. Begonia oligantha Merr., PJS 10 c (1915) Bot. 50; EPFP 3 (1923) 126; Type: BS 15733 Fenix (US, iso), Mindanao: Bukidnon. Distribution: Endemic to the Philippines. MINDANAO: Bukidnon. Native.
  115. Begonia oxysperma A.DC., Ann. Sci. Nat. Bot. iv, 11 (1859) 122; Merr., EPFP 3 (1923) 126. Distribution: Endemic to the Philippines. LUZON: Benguet, Ifugao, Laguna, Mountain Province, Quezon, Rizal, MINDORO. Notes: Primary forests, on trees or cliffs, 400-1900m. Conservation status: Vulnerable (DAO 2017-11). Native.
  116. Begonia palawanensis Merr., PJS 6 c (1911) Bot. 380; EPFP 3 (1923) 126; Type: BS 7232 Merrill (BM, lecto; B, BM, K, L, P, PNH, isolecto), Palawan: Puerto Princesa, Napsahan, c. 4m, 19-Sep-1910. Distribution: Endemic to the Philippines. PALAWAN. Notes: Along small streams in low elevation primary forests. Conservation status: Endangered (DAO 2017-11). Native.
  117. Begonia palemlemensis Calaramo, C.W.Lin & Rubite, Phytotaxa 407 (2019) 38; Type: Calaramo 13181 (HNUL, holo; PNH, iso), Luzon: Ilocos Norte, Pagudpud, Kalbaryo Patapat Natural Park, 650m, 28-Jun-2018. Distribution: Endemic to the Philippines. Conservation status: Vulnerable D2 (Calaramo et al. 2019). Native.
  118. Begonia panayensis Merr., PJS 14 (1919) 428; EPFP 3 (1923) 127; Type: BS 32309 McGregor (US, iso), Panay: Antique, Culasi, May/Aug-1918. Distribution: Endemic to the Philippines. PANAY. Notes: Along shaded streams, c. 250m. Native.
  119. Begonia parva Merr., PJS 6 c (1911) Bot. 402; EPFP 3 (1923) 127; Type: BS 5551 Ramos (US, iso), Luzon: Benguet, Rio Trinidad (Balili River), Dec-1908. Distribution: Endemic to the Philippines. LUZON: Benguet. Notes: On stream boulders, c. 1400m. Native.
  120. Begonia parvilimba Merr., PJS 26 (1925) 481; EPFP 4 (1925) 250; Mazo & Rubite, Phytotaxa 538 (2022) 164; Type: BS 36936 Ramos & Edaño (US, lecto), Mindanao: Zamboanga del Sur [Zamboanga Sibugay], Malangas, Oct/Nov-1919. Distribution: Endemic to the Philippines. MINDANAO: Zamboanga Sibugay, Zamboanga del Norte. Conservation status: Critically Endangered (Mazo & Rubite 2022). Native.
  121. Begonia perryae L.B.Sm. & Wassh., Phytologia 52 (1983) 445. = Begonia robinsonii Merr., PJS 6 c (1911) Bot. 375, nom. illeg., non Ridl.; Type: BS 6340 Robinson, Luzon: Camarines Sur, Maagnas, 28-Aug-1908. Distribution: Endemic to the Philippines. LUZON: Camarines. Notes: Low elevation forests. Native.
  122. Begonia platyphylla Merr., PJS 10 c (1915) Bot. 46; EPFP 3 (1923) 127; Type: BS 20074 McGregor (PNH, lecto; BM, K, P, US, isolecto), Luzon: Nueva Vizcaya, Jan-1913. Distribution: Endemic to the Philippines. LUZON: Aurora, Nueva Vizcaya. Conservation status: Endangered (Rubite 2013; DAO 2017-11). Native.
  123. Begonia polilloensis Tebbitt, Edinburgh J. Bot. 61 (2005) 99. Distribution: Endemic to the Philippines. LUZON: Quezon (photos), POLILLO. Native.
  124. Begonia polyclada C.I Peng, C.W.Lin & Rubite, Phytotaxa 296 (2017) 93; Type: C.I Peng 23553 (PNH, holo; HAST, iso), Luzon: Aurora, Baler, 25-Oct-2012. Distribution: Endemic to the Philippines. LUZON: Aurora. Native.
  125. Begonia quercifolia A.DC., Ann. Sci. Nat. Bot. iv, 11 (1859) 129; Merr., EPFP 3 (1923) 127. Distribution: Endemic to the Philippines. LUZON: Quezon, MINDORO, SAMAR. Native.
  126. Begonia quinquealata C.I Peng, Rubite & C.W.Lin, PLOS ONE 13 (2018) e0194877:18; Type: C.I Peng 24588 with C.I Huang, R.R. Rubite, E.P. Gironella, M.A. Suzuki, T.C.B. Cardona (PNH, holo; HAST, iso), Palawan: Puerto Princesa City, Brgy Napsan, Salakot Falls, c. 315m, 20-Dec-2014. Distribution: Endemic to the Philippines. PALAWAN. Conservation status: Critically Endangered B2 abiii & v (Hughes et al. 2018). Native.
  127. Begonia ramosii Merr., PJS 6 c (1911) Bot. 388; EPFP 3 (1923) 127; Type: Ramos 10942 (PNH, lecto; B, BM, isolecto), Luzon: Laguna, San Antonio, Aug-1910. Distribution: Endemic to the Philippines. LUZON: Laguna. Conservation status: Endangered (Rubite 2013; DAO 2017-11). Native.
  128. Begonia rieckei Warb., Jahrb. Syst. 13 (1891) 387; Ardi & Thomas, Edinburgh J. Bot. 79 (2022) 35; Type: from New Guinea. = Begonia pseudolateralis Warb. in Perkins, Frag. Fl. Philipp. (1904) 55; Merr., EPFP 3 (1923) 127; Type: Warburg 11793 (B, holo; B, iso), Luzon: Isabela. = Begonia aptera var. calleryana (A.DC.) Fern.-Vill., Fl. Filip. 4 (1880) 99; ≡ Mezierea salaziensis var. calleryana A.DC., Prodr. 15 (1864) 408; Type: Callery s.n. (P, holo), Luzon: Laguna, Calauan, 1840. = Begonia lateralis Elmer ex Merr., EPFP 3 (1923) 127, nom. inval., nom. nud. Distribution: Moluccas, New Guinea, Pacific Ocean, Philippines, Sulawesi. CATANDUANES, CEBU, LEYTE, LUZON: Albay, Apayao, Aurora, Bataan, Cagayan, Camarines, Cavite, Ifugao, Ilocos Norte, Isabela, Laguna, Sorsogon, Tayabas, MINDANAO: Agusan del Norte, Davao, Surigao, Zamboanga, MINDORO, NEGROS, PANAY, POLILLO, SAMAR. Notes: Widespread in the Philippines. Conservation status: Least Concern (Rubite 2013). Native.
  129. Begonia rizalensis Merr., PJS 6 c (1911) Bot. 388; EPFP 3 (1923) 127; Type: BS 12109 Ramos (US, iso), Luzon: Rizal, San Isidro, Jun-1910. Distribution: Endemic to the Philippines. LUZON: Rizal. Native.
  130. Begonia rubiteae M.Hughes, Edinburgh J. Bot. 67(1) (2010) 134; Type: R.R. Rubite 357 (PNH, holo; E, SING, iso), Busuanga Isl: Coron, Mabentangen Forest Park, 28-Feb-2007. Distribution: Endemic to the Philippines. BUSUANGA. Notes: At streamsides at c. 100m. Conservation status: Endangered (DAO 2017-11). Native.
  131. Begonia rubrifolia Merr., PJS 14 (1919) 426; EPFP 3 (1923) 127; Type: BS 32430 R.C. McGregor, Panay: Antique, Culasi, c. 1000m, 7-Jun-1918. Distribution: Endemic to the Philippines. PANAY. Notes: Forests, c. 1000m. Native.
  132. Begonia rufipila Merr., PJS 6 c (1911) Bot. 393; EPFP 3 (1923) 127; Batuyong et al., Biodiversitas 21 (2020) 3973; Type: FB 5665 Klemme (US, iso), Luzon: Ilocos Sur (Abra), Dolores, 31-Oct-1906. Distribution: Endemic to the Philippines. LUZON: Abra, Ilocos Sur. Notes: Ilocos Range along W Abra. Damp limestone boulders in shaded places, c. 200m. Native.
  133. Begonia samarensis Merr., PJS 30 (1926) 413; Type: BS 43757 McGregor (NY, US, iso), Samar: Western Samar, Loquilocon, hillside forests, c. 250m. Jun-1924. Distribution: Endemic to the Philippines. SAMAR. Notes: Low elevation forests on limestone. Native.
  134. Begonia sarmentosa L.B.Sm. & Wassh., Phytologia 52 (1983) 4. = Begonia elegans Elmer, LPB 7 (1915) 2554, nom. illeg., non Kunth; Merr., EPFP 3 (1923) 122; Type: Elmer 13672 (MO, NY 2 sheets, US, iso), Mindanao: Agusan del Norte, Cabadbaran, Mt Urdaneta, Cawilanan, 4250ft (1295m), Sep-1912. Distribution: Endemic to the Philippines. MINDANAO: Agusan del Norte, SIBUYAN. Notes: Forested ravines, 1250m. Note by L.L.Co: Probably not distinct from the very close Begonia aequata A.Gray of Luzon. Native.
  135. Begonia serpens Merr., PJS 14 (1919) 427; EPFP 3 (1923) 128; Type: BS 32588 McGregor (US, iso), Panay: Antique, May/Aug-1918. Distribution: Endemic to the Philippines. PANAY. Native.
  136. Begonia sohoton Rubite, C.Justo, P.Villaseñor & C.W.Lin, Phytotaxa 516 (2021) 265; Type: Rubite 997 (PNH, holo), Samar: Basey, Sohoton Caves and Natural Bridge National Park, 120m, 7-Dec-2018. Distribution: Endemic to the Philippines. SAMAR. Conservation status: Vulnerable (D2) (Rubite et al. 2021). Native.
  137. Begonia sorsogonensis Elmer ex Merr., EPFP 3 (1923) 121, in obs., pro syn.; Elmer, LPB 10 (1939) 3708, nom. inval., no Latin descr. Distribution: Endemic to the Philippines. CATANDUANES (photos), LUZON: Sorsogon. Native.
  138. Begonia suborbiculata Merr., PJS 6 c (1911) Bot. 398; EPFP 3 (1923) 128; Type: Merrill 7229 (BM, lecto; B, BM, K, P, US, isolecto), Palawan: Malampaya Bay, Sep-1910. Distribution: Endemic to the Philippines. PALAWAN. Notes: On rock ledges in forest, c. 40m. Conservation status: Vulnerable (DAO 2017-11). Native.
  139. Begonia subprostrata Merr., PJS 26 (1925) 478; EPFP 4 (1925) 250; Type: BS 36977 Ramos & Edaño (US, iso), Mindanao: Zamboanga del Sur, Malangas, Oct/Nov-1919. Distribution: Endemic to the Philippines. MINDANAO: Zamboanga Sibugay, Zamboanga del Sur. Native.
  140. Begonia subtruncata Merr., PJS 6 c (1911) Bot. 390; EPFP 3 (1923) 128; Type: Loher 6076, Luzon: La Union (Castilla), Mar-1906. Distribution: Endemic to the Philippines. LUZON: La Union. Notes: In forests. Native.
  141. Begonia sykakiengii Rubite, C.I Peng, C.W.Lin & K.F.Chung, Botanical Studies 58 (2017) 28; Type: C.I Peng 23836 with K.-F. Chung, C.I Huang, R.R. Rubite, L.L. Lastimosa & K. Lopez (PNH, holo; HAST, iso), Panay: Capiz, Maayon, Brgy Tapulang, Igang Cave, c. 15m, 22-Jun-2012. Distribution: Endemic to the Philippines. PANAY. Conservation status: Endangered B2ab(iii) (Peng et al. 2017). Native.
  142. Begonia tabonensis C.I Peng, Rubite & C.W.Lin, PLOS ONE 13 (2018) e0194877:20; Type: C.I Peng 24538 with C.I Huang, R.R. Rubite, E.P. Gironella, M.A. Suzuki & T.C.B. Cardona (PNH, holo; HAST, iso), Palawan: Quezon, Lipuun Point, Tabon Cave, c. 30m, 13-Dec-2014. Distribution: Endemic to the Philippines. PALAWAN. Conservation status: Least Concern (Hughes et al. 2018). Native.
  143. Begonia tagbanua M.Hughes, C.I Peng & Rubite, Botanical Studies 56 (2015) 19; Type: C.I Peng 23471, with K.-F. Chung, C.I Huang, R.R. Rubite (PNH, holo; A, E, HAST, MO, iso), Palawan, Puerto Princesa, Puerto Princesa Subterranean River National Park, c. 35m, 2-Nov-2011. Distribution: Endemic to the Philippines. PALAWAN. Native.
  144. Begonia tandangii C.I Peng & Rubite, Phytotaxa 145 (2013) 34; Type: C.I Peng 23400 (HAST, holo), Luzon: Aurora, Baler, Brgy Zabali, 27-Oct-2011. Distribution: Endemic to the Philippines. LUZON: Aurora. Conservation status: Vulnerable (DAO 2017-11). Native.
  145. Begonia tandikan Pranada, Camangeg, W.Caban. & Y.P.Ang, Gard. Bull. Singapore 73 (2021) 407; Type: L.M. Camangeg & W.P.Cabanillas PTI-3 (PNH, holo; FEUH, PPC, iso), Palawan: Puerto Princesa, Brgy Iwahig, Balsahan river, 75m, 27-Jul-2020. Distribution: Endemic to the Philippines. PALAWAN. Conservation status: Critically Endangered (Camangeg et al. 2021). Native.
  146. Begonia tarangban Rubite, C.Justo, P.Villaseñor & C.W.Lin, Phytotaxa 516 (2021) 267; Type: Rubite 998 (PNH, holo), Samar: Calbayog, Tarangban Falls, 160m, 9-Dec-2018. Distribution: Endemic to the Philippines. SAMAR. Conservation status: Vulnerable (D2) (Rubite et al. 2021). Native.
  147. Begonia taraw C.I Peng, Rubite & M.Hughes, Botanical Studies 56 (2015) 19; Type: C.I Peng 23464, with K.-F. Chung, C.I Huang, R.R. Rubite (PNH, holo; E, HAST, iso), Palawan: Puerto Princesa, Puerto Princesa Subterranean River National Park, c. 5m, 2-Nov-2011. Distribution: Endemic to the Philippines. PALAWAN. Conservation status: Vulnerable D2 (Rubite et al. 2015). Native.
  148. Begonia tayabensis Merr., PJS 13 c (1918) Bot. 38; EPFP 3 (1923) 128; Type: BS 29054 Ramos & Edaño (NY, US, iso), Luzon: Tayabas, May/Jun-1917. Distribution: Endemic to the Philippines. LUZON: Quezon, Tayabas. Native.
  149. Begonia tenuibracteata C.I Peng, Rubite & C.W.Lin, PLOS ONE 13 (2018) e0194877:23; Type: C.I Peng 23452 with K.-F. Chung, C.I Huang & R.R. Rubite (PNH, holo; HAST, iso), Palawan: Puerto Princesa City, Brgy Napsan, Salakot Falls, c. 180m, 1-Nov-2011. Distribution: Endemic to the Philippines. PALAWAN. Conservation status: Endangered (Hughes et al. 2018). Native.
  150. Begonia tinuyopensis Mazo, Aribal, R.Bustam. & Y.P.Ang, Phytotaxa 516 (2021) 102; Type: Mazo KRM 4 (PNH, holo; CMUH, CAHUP, iso), Mindanao: Zamboanga del Norte, Leon B. Postigo, Brgy Tinuyop, 319m, 28-Feb-2021. Distribution: Endemic to the Philippines. MINDANAO: Zamboanga del Norte. Conservation status: Endangered (B1ab(i,ii)+B2ab(i,ii)) (Mazo et al., 2021). Native.
  151. Begonia titoevangelistae Tandang & Rubite, Phytotaxa 282 (2016) 276; Type: D.N. Tandang 1994 (PNH, holo; CAHUP, iso), Catanduanes: Catanduanes, Gigmoto, Brgy San Pedro, Nahulugan Falls, moist rocks under trees and shrubs near the waterfalls, elevation c. 93m, 28-June-2015. Distribution: Endemic to the Philippines. CATANDUANES. Conservation status: Critically Endangered (Tandang et al., 2016). Native.
  152. Begonia trichochila Warb. in Perkins, Frag. Fl. Philipp. (1904) 53; Merr., EPFP 3 (1923) 128. Distribution: Endemic to the Philippines. LUZON: Rizal. Native.
  153. Begonia truncatifolia R.Bustam., Tandang, Pranada & Y.P.Ang, Phytotaxa 458 (2020) 217; Type: Camangeg & Bustamante 0003 (PNH, holo; PPC, FEUH, iso), Palawan: San Vicente, Brgy New Agutaya, 250m, 20-Aug-2019. Distribution: Endemic to the Philippines. PALAWAN. Conservation status: Critically Endangered B2ab(iii) (Bustamante et al. 2020). Native.
  154. Begonia turugsoy Mazo & Rubite, Phytotaxa 538 (2022) 164; Type: K.R.F. Mazo 55 (PNH, holo), Mindanao: Zamboanga del Norte, Leon B. Postigo, Brgy Tinuyop, Molina River, 310m, 7-Nov-2021. Distribution: Endemic to the Philippines. MINDANAO: Zamboanga del Norte. Conservation status: Critically Endangered (Mazo & Rubite 2022). Native.
  155. Begonia urdanetensis Elmer, LPB 7 (1915) 2559; Merr., EPFP 3 (1923) 128; Type: Elmer 13819 (NY, MO, US, iso), Mindanao: Agusan del Norte, Mt Urdaneta, Sep-1912. Distribution: Endemic to the Philippines. MINDANAO: Agusan del Norte. Notes: Primary forests, c. 1500m. Native.
  156. Begonia vanoverberghii Merr., PJS 6 c (1911) Bot. 403; EPFP 3 (1923) 128. Distribution: Endemic to the Philippines. LUZON: Mountain Province, Nueva Ecija. Native.
  157. Begonia wadei Merr. & Quisumb., Addisonia 17 (1932) 57; Type: BS 78301 W.H. Brown (NY, lecto), Coron Island, Dec-1929. Distribution: Endemic to the Philippines. CORON, PALAWAN. Notes: Near the coast on exposed coralline limestone. Native.
  158. Begonia weberi Merr., PJS 6 c (1911) Bot. 381; EPFP 3 (1923) 128; Type: Weber 1210, Mindanao: Agusan del Norte, Mt Hilong-hilong, rocky slopes in ravines, c. 450m. Distribution: Endemic to the Philippines. MINDANAO: Agusan del Norte. Notes: Rocky slopes in forested ravines, c. 450m. Native.
  159. Begonia wenzelii Merr., PJS 10 c (1915) Bot. 277; EPFP 3 (1923) 128. Distribution: Endemic to the Philippines. LEYTE, LUZON: Kalinga. Native.
  160. Begonia wilkiei Coyle, Edinburgh J. Bot. 67 (2010) 138; Type: cult. Royal Botanic Garden Edinburgh acc. no. 19980279, grown on from R. Fuentes, R.V. Chavez, G. Argent, Q. Cronk, M. Mendum, P. Wilkie & D. Middleton 25416, 21-Jan-1998, vouchered in 2007 as C. Coyle s.n. (E, holo; SING, iso), Palawan: Cleopatra's Needle. Distribution: Endemic to the Philippines. PALAWAN. Notes: c. 960m. Conservation status: Vulnerable (DAO 2017-11). Native.
  161. Begonia woodii Merr., PJS 26 (1925) 478; EPFP 4 (1925) 250; Type: Merrill 11589 (L, lecto; B, P, US, isolecto), Palawan: Malampaya Bay (Sound), 8-Oct-1922. Distribution: Endemic to the Philippines. PALAWAN. Notes: Primary forests on cliffs, c. 50m. Conservation status: Vulnerable (DAO 2017-11). Native.
  162. Begonia zamboangensis Merr., PJS 26 (1925) 481; EPFP 4 (1925) 250; Type: BS 37371 Ramos & Edaño (US, iso), Mindanao: Zamboanga del Sur, Malangas, Nov-1919. Distribution: Endemic to the Philippines. MINDANAO: Zamboanga Sibugay, Zamboanga del Sur. Notes: Forested small stream banks at low elevation. Native.

Incertae sedis

  1. Begonia porteana Van Geert, Nursery Cat. 81 (1882) 90; L.B.Sm. et al., Smiths. Contr. Bot. no. 60 (1986) 218. Distribution: Endemic to the Philippines. Native.

Excluded

  1. Begonia subnummularifolia Merr., PJS 29 (1926) 403; Type: from Borneo. Note by P.B. Pelser (24-Jun-20): This species was reported for the Philippines in a previous version of this checklist, with reference to Merrill 5375 (B, NY, P) from Balabac. However, Hughes et al. (2010) identified this specimen as Begonia mindorensis Merr. It is, however, not impossible that Begonia subnummularifolia will be found in Balabac in the future (Hughes, pers. comm. 24-Jun-20).

References