Family 247. APOCYNACEAE Alstonia R Brown Borneo, Philippines ...

Revision:
Middleton, DJ. 1993. A taxonomic revision of Willughbeia Roxb. (Apocynaceae). Blumea 38:1-24
Willughbeia anomala Markgr., Blumea 20 (1972) 415; --DJ Middleton, Blumea 38 (1993) 7; Fl.
Males. Ser. 1, 18 (2007) 424. –Type from Brunei
Borneo, Philippines.
MINDANAO.
Willughbeia sarawacensis (Pierre) K Schum. in Engl. & Prantl, Nat. Pflanzenfam. Nachtr. 2
(1900) 53; --Markgr., Blumea 20 (1972) 413; --DJ Middleton, Blumea 38 (1993) 17; Fl. Males.
Ser. 1, 18 (2007) 434; --Ancylocladus sarawhaensis Pierre, Bull. Mens. Soc. Linn. Paris sér. 2, 1
(1898) 96. –Type from Sarawak.
Borneo, Philippines.
PALAWAN.
Wrightia R Brown
Revision:
Ngan, PT. 1965. A revision of the genus Wrightia (Apocynaceae). Annals of the Missouri
Botanical Garden 52: 114-175.
Wrightia candollei S Vidal, Phan. Cuming, Philipp. (1885) 186 (as ‘cadollei’); --Merr., EPFP 3 (1923)
337; --DJ Middleton, Harvard Pap. Bot. 10 (2005) 162; Fl. Males. ser. 1, 18 (2007) 437; --Wrightia
pubescens R Br. subsp. candollei (S Vidal) Ngan, Ann. Missouri Bot. Gard. 52 (1965) 153. –Type:
Cuming 1453 (lecto P, designated by Middleton, 2005; isolecto BM, CGE, K). Luzon: ‘Manila’.
LUZON: Benguet, Pangasinan, Zambales, Nueva Ecija, Rizal, Laguna, MINDORO,
PALAWAN (Taytay; Irawan River Valley), LANGEN. Mixed evergreen or deciduous low
altitude forests and secondary growth.
Wrightia aff. dubia (Sims) Sprengel, Syst. Veg. 1 (1825) 638; --Soejarto et al. (1995) Prelim.
Checklist Fl. Pl. Palawan.
Thailand, Cambodia, Laos, Vietnam, Peninsular Malaysia, Singapore, Philippines.
PALAWAN (Tacdua Zigzag; Bacungan, hills above Nagtabon beach; Narra, Calatigas,
Purok Dumpsite; Balanjao Range, Rio Tuba)
Wrightia hanleyi Elmer, LPB 4 (1912) 1465; --Merr., EPFP 3 (1923) 337; --Ngan, Ann. Missouri Bot.
Gard. 52 (1965) 168; --DJ Middleton, Harvard Pap. Bot. 10 (2005) 166; Fl. Males. ser. 1, 18 (2007)
440. –Type: Elmer 12873 (lecto GH, designated by Middleton, 2005; isolecto A, BISH, BO, E, F, K,
L, MO*, NSW, NY*, US*, Z). Palawan: Mt Pulgar (=Thumb Peak), March 1911.
PALAWAN (Taytay, Mt Bloomfield; Irawan River Valley; Narra, Bato-bato, km 107;
Quezon, Lipuun; Brooke’s Point). Clearings, thickets and open forests, low altitudes.
Wrightia laevis Hook.f., Fl. Brit. India 3 (1882) 654; --Ngan, Ann. Missouri Bot. Gard. 52 (1965)
136; --DJ Middleton, Harvard Pap. Bot. 10 (2005) 168; Fl. Males. ser. 1, 18 (2007) 440. –Type from
Peninsular Malaysia.
Wrightia sorsogonensis Elmer, LPB 10 (1939) 3698, invalid name; no Latin description. Based on: Elmer
15595 (A, BM, BO, C, GH, K, L, MO, NSW, NY, P, PNH, S, Z). Luzon: Sorsogon prov., Mt Bulusan,
Irosin.
S China, Hainan, Thailand, Indochina, Sumatra, Peninsular Malaysia, Singapore,
Philippines, New Guinea, Australia (Queensland).
Wrightia palawanensis DJ Middleton, Harvard Pap. Bot. 10 (2005) 172; Fl. Males. ser. 1, 18
head on the lower slopes of Mt Beaufort.
PALAWAN. Riverine and mixed forests and from ultramafic soils, altitude 100-200m.
(2007) 442. –Type: SM