SCAPHIUM AFFINE (MAST.) PIERRE (STERCULIACEAE) NEW FOR THAILAND (P. PHONSENA & P. WILKIE)
Khao Hin Son Botanic Garden); Khao Soi Dao WS., 23 Jan. 1998, Phonsena 1246 (Herbarium of Khao Hin Son Botanic Garden); Khao Soi Dao WS., Soi Dao Waterfall, 3 May 2005, Phonsena 4551 (BKF, L, Herbarium of Khao Hin Son Botanic Garden); 20 Dec. 2005, Phonsena 4753 (BKF, L); Khao Soi Dao WS., 1 km from HQ. to waterfall, 30 March 2006, Phonsena 4858 (BK, BKF, L, Herbarium of Khao Hin Son Botanic Garden: with spirit collection, Herbarium of Saun Luang Rama IX)]; Chon Buri [Khao Ang Ruenai WS., Ang Phak Nam Waterfall, 14 Feb. 2004, ilkie et al. PW422 (BKF)]; PENINSULAR: Chumphon [Ban Ta Ngam, 15 Jan. 1927, A.F.G. Kerr 11457 (BK)]; Phatthalung [Si Banphot, Khao Pu- KhaoYa NP., HQ., 10 March 2005, Gardner & ippayasri ST1643 (BKF)]; Ranong [Kapoe, 15 Jan. 1929, A.F.G. Kerr 16701 (BK); Khao Panta, 22 Jan. 1929, A.F.G. Kerr 16814 (BK); Khlong Kamphuan, 5 Feb. 1929, A.F.G. Kerr 17026 (BK)].
Distribution.–– Burma, Loas, Vietnam, Malay Peninsula.
Ecology.–– In evergreen forest; at 80–700 m altitude. Flowering: December–February. Fruiting: January–May.
Vernacular.–– Thai phao (oµ¥Á£µ), samphao (¶Á£µ) (Phatthalung), samrong kalok (¶¦°³Ã®¨), samrong nu (¶¦°®¼) (Chanthaburi).
Uses.–– Wood for plywood. Seed yields copious mucilage used as beverages and medicines to treat diarrhoea, dysentery and asthmatic complaints but less popular.
Notes.–– 1. Scaphium scaphigerum and S. affine can be found together in southeastern Thailand, but only one collection of S. affine is known from the peninsula (A.F.G. Kerr 7466); in the east only S. affine occurs.
This study was partly supported by the TRF/BIOTEC special program for Biodiversity Research and Training Grant BRT 339001. The discovery of the existence of the two morphologically similar species of Scaphium in southeastern Thailand instead of only one was extensively discussed with Dr. Chamlong Phengklai, Fellow of the Royal Institute of Thailand. The first author would like to thank for his generous contribution to the conclusion in this article and also is grateful toWillem de Wilde and Brigitta Duyfjes (National Herbarium Netherlands) for final revision of the manuscript. Sincere thanks to Orathai Kerdkaew (BKF) who prepared the beautiful line-drawing. Many thanks to Yutthana Banchong for support with some photographs and to Kanokon Bunpha for assisted with the preparation of the manuscript. We would also like to thank the staff of the herbaria at K and SING.
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