Achariaceae

Eleutherandra Slooten

Last edited by Pieter B. Pelser, 13 October 2019

Possibly present

  1. Eleutherandra pes-cervi Slooten, Bull. Jard. Bot. Buitenzorg, 3rd Sér. 7 (1925) 329. Distribution: Borneo, ?Philippines, Sumatra. ?SAMAR. Notes: Note by P.B. Pelser & J.P. Collantes (14-Aug-20): PPI 24198 Reynoso & Majaducon (L) possibly represents this species in the Philippines. 25-400m. Conservation status: Vulnerable (IUCN 3.1).

Erythrospermum Lam.

Last edited by Pieter B. Pelser, 7 October 2017

Incertae sedis

  1. Erythrospermum sp.; Soejarto et al., Prelim. Checklist Fl. Pl. Palawan (1995); Voucher: Soejarto 7683 (A, F, PNH), Palawan: Mt Capoas, NE foot. Distribution: PALAWAN. Native.

Hydnocarpus Gaertn.

Last edited by Pieter B. Pelser, 1 August 2026
  1. Hydnocarpus alcalae C.DC., PJS 11c (1916) 37; Merrill, EPFP 3 (1923) 107; Sleumer, Fl. Males. ser. 1, 5 (1954) 25. Distribution: Endemic to the Philippines. LUZON: Albay, Laguna. Notes: Low elevation forests. Cultivated and naturalized in Laguna (Mt Makiling). 200m. Conservation status: Endangered (IUCN 3.1). DAO category: Vulnerable. Native.
  2. Hydnocarpus cauliflorus Merr., PJS 9c (1914) 323, as 'cauliflora'; Merrill, EPFP 3 (1923) 107; Sleumer, Fl. Males. ser. 1, 5 (1954) 25; Type: FB 11799 Whitford, Mindanao: District of Cotabato, Lebak [present day Sultan Kudarat], 1912. Distribution: Endemic to the Philippines. MINDANAO: Sultan Kudarat. Notes: Low elevation primary dipterocarp forest. Conservation status: Critically Endangered (IUCN 3.1). Native.
  3. Hydnocarpus heterophyllus Blume, Rumphia 4 (1849) 22, as 'heterophylla'; Sleumer, Fl. Males. ser. 1, 5 (1954) 20. Distribution: Borneo, Java, Philippines, Sulawesi, Sumatra. BUSUANGA, DINAGAT, LEYTE, LUZON: Camarines, Sorsogon, MASBATE, MINDORO, NEGROS, PALAWAN, PANAY, SAMAR, TABLAS, TICAO. Notes: 0-900m. Conservation status: Least Concern (IUCN 3.1). Native.
    • ssp. philippinensis Sleumer, Bot. Jahrb. Syst. 69 (1938) 20; Fl. Males. ser. 1, 5 (1954) 20. = Cyclostemon iwahigensis Elmer, LPB 4 (1911) 1278. ≠ Taraktogenos heterophylla auct. non (Blume) Slooten; Merr., EPFP 3 (1923) 108. Distribution: Borneo, Philippines, Sulawesi. BUSUANGA, DINAGAT, LEYTE, LUZON: Camarines, Sorsogon, MASBATE, MINDORO, NEGROS, PALAWAN, PANAY, TABLAS, TICAO. Notes: Low elevation forests. Native.
  4. Hydnocarpus polypetalus (Slooten) Sleumer, Bot. Jahrb. Syst. 69 (1938) 62, as 'polypetala'; Fl. Males. ser. 1, 5 (1954) 31; Soejarto et al., Prelim. Checklist Fl. Pl. Palawan (1995); ≡ Taraktogenos polypetalum Slooten, Bijdr. Combret. Flacourt. Ned.-Ind. (1919) 74. Distribution: Borneo, Philippines, Sumatra. PALAWAN. Notes: Lowland to medium elevation primary forest. 0-904m. Conservation status: Least Concern (IUCN 3.1). Native.
  5. Hydnocarpus subfalcatus Merr., PJS 4c (1909) 297, as 'subfalcata'; Merrill, EPFP 3 (1923) 107; Sleumer, Fl. Males. ser. 1, 5 (1954) 22. = Hydnocarpus ovoideus Elmer, LPB 4 (1912) 1514, as 'ovoidea'; Type: Elmer 12410, Sibuyan: Magallanes, Mt Giting-giting, May-1910. = Hydnocarpus quadrasii Elmer, LPB 4 (1912) 1515; Merrill, EPFP 3 (1923) 107; Type: Elmer 12085, Sibuyan: Magallanes, Mt Giting-giting, Mar-1910. Distribution: Borneo, Philippines, Sumatra. LUZON: Aurora, Cagayan, Isabela, Pangasinan, Quezon, Zambales, MINDANAO: Misamis Occidental, Surigao, SAMAR, SIBUYAN. Notes: Low elevation thickets and forests, on non-inundated level ground. 0-1500m. Conservation status: Least Concern (IUCN 3.1). Native.
  6. Hydnocarpus sumatranus (Miq.) Koord., Syst. Verz. (Koord.-Schum.) 1 (1911) 2, as 'sumatrana'; Sleumer, Fl. Males. ser. 1, 5 (1954) 27; ≡ Bergsmia sumatrana Miq., Fl. Ned. Ind., Eerste Bijv. (1861) 389. = Hydnocarpus hutchinsonii Merr., PJS 17 (1920) 291; Merrill, EPFP 3 (1923) 107. Distribution: Borneo, Java, Philippines, Sulawesi, Sumatra. BASILAN, LUZON: Laguna, MINDANAO: Zamboanga, Zamboanga Sibugay, Zamboanga del Norte (photos), MINDORO, ?PALAWAN, TAWI-TAWI. Notes: 0-850m. Conservation status: Least Concern (IUCN 3.1). Native.
    • var. sumatranus. Distribution: Borneo, Java, Philippines, Sulawesi, Sumatra. BASILAN, MINDANAO: Zamboanga del Norte (photos), TAWI-TAWI. Notes: Rainforests, never in inundated areas, on sandy or clayey soil and hilly or steep ground. 30-200m. Native.
    • var. pentagynus (Slooten) Sleumer, Bot. Jahrb. Syst. 69 (1938) 52, as 'pentagyna'; Fl. Males. ser. 1, 5 (1954) 28; ≡ Hydnocarpus pentagynus Slooten, Bijdr. Combret. Flacourt. Ned.-Ind. (1919) 64. = Hydnocarpus palawanensis Merr. & Quisumb., PJS 82 (1953) 330. Distribution: ?Borneo, ?Philippines, Sumatra. ?PALAWAN. Notes: Known with certainty only from a single collection from Sumatra. Very similar but not quite identical specimen have been found in Palawan in Puerto Princesa (PNH 192 Edano). This was described as Hydnocarpus palawanensis Merr. & Quisumb. Similar materials have also been found in Borneo (Sarawak and Mt Kinabalu). 200m.

Pangium Reinw.

Last edited by Pieter B. Pelser, 20 August 2026
  1. Pangium edule Blume ex Reinw., Syll. Pl. Nov. 2 (1825) 12; Blume, Cat. Gew. Buitenz. (1823) 112, nom. inval., nom. nud.; Merrill, EPFP 3 (1923) 108; Sleumer, Fl. Males. ser. 1, 5 (1954) 36. Distribution: Bismarck Arch, Borneo, Java, Lesser Sunda Isls, Malay Peninsula, Moluccas, New Guinea, Nicobar Isls, Pacific Ocean, Solomon Isls, Sulawesi, Sumatra. CAMIGUIN, CEBU, LEYTE, LUZON: Camarines, Camarines Sur, Sorsogon, MINDANAO: Davao del Sur, Lanao del Sur, South Cotabato (photos), Zamboanga del Norte (photos), MINDORO, NEGROS, PALAUI, PALAWAN, PANAY, SAMAR. Notes: Primary and secondary forests at low and medium elevation. 0-300(-1000)m. Conservation status: Least Concern (IUCN 3.1). Native.

Ryparosa Blume

Last edited by Pieter B. Pelser, 26 September 2022
  1. Ryparosa cauliflora Merr., PJS 9c (1914) 325; Merrill, EPFP 3 (1923) 109; Sleumer, Fl. Males. ser. 1, 5 (1954) 42. Distribution: Endemic to the Philippines. LUZON: Camarines Norte, MINDANAO: Surigao, TINAGO. Notes: Forests at low elevation. 300m. Conservation status: Critically Endangered (IUCN 3.1). Native.
  2. Ryparosa hullettii King, J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 59 (1890) 126; Sleumer, Fl. Males. ser. 1, 5 (1954) 48. Distribution: Borneo, Malay Peninsula, Philippines. PANAY. Notes: Known for the Philippines from Mt Poras: Reynoso 21076. 0-800m. Conservation status: Least Concern (IUCN 3.1). Native.

Possibly present

  1. Ryparosa fasciculata King, J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 59 (1890) 127; Sleumer, Fl. Males. ser. 1, 5 (1954) 43. Distribution: Malay Peninsula, ?Philippines, Thailand. ?PALAWAN. Notes: 0-1000m.

Trichadenia Thwaites

Last edited by Pieter B. Pelser, 13 October 2019
  1. Trichadenia philippinensis Merr., PJS 4c (1909) 298; Merrill, EPFP 3 (1923) 108; Sleumer, Fl. Males. ser. 1, 5 (1954) 39. = Vitex curtifrutescens Elmer, LPB 8 (1915) 2873; Bramley, Fl. Males. ser 1, 23 (2019) 421; Type: Elmer 10994 (PNH, holo; E, K, L, NY, iso), Mindanao: Todaya (Mt Apo), Jul-1909. Distribution: Moluccas, New Guinea, Philippines, Solomon Isls, Sulawesi. LUZON: Camarines, Isabela, Laguna, Nueva Ecija, Pangasinan, Quezon, Rizal, Sorsogon, MINDANAO: Davao del Sur, Lanao, Misamis Occidental, NEGROS, PANAY, SAMAR, SIBUYAN. Notes: Primary or old secondary forests, on flat or hilly but non-inundated places. 0-900m. Conservation status: Least Concern (IUCN 3.1). Native.

References