Volume 2 > Part 2 > Year 1972 > Page 110 > Saurauiaceae > Saurauia

3. Saurauia tristyla DC.wfo-0001225014

Mèm Soc. Phys. Hist. nat. Genève 1: 423. t. 7. 1822; Dyer in Hook.f., Fl. Br. Ind. 1: 287. 1874; Fin. & Gagnep. in Fl. Gèn I.-C. 1: 25. 1907; Ridl., Fl. Ml. Pen. 1: 207. 1922; Craib, Fl. Siam. En. 1: 129. 1925.

Accepted Name : This is currently accepted.

Synonyms & Citations :

Description : Shrub or small spreading tree, to 10 m high. Branches, petiole and under surface of leaves covered with ferruginous tomentum when young, glabrescent when old. Leaves narrowly obovate to broadly oblong, 18–35 by 6–10 cm; apex acute-acuminate; base narrowly cuneate; margin remotely or finely serrulate, setose; petiole 2–4 cm long. Flowers in small fascicles, axillary or on small tubercles on small branches. Sepals obovate, 3–4 mm long, obtuse. Petals pink or whitish, ovate, 4–6 mm long. Stamens about 20. Ovary glabrous; styles mostly 3, rarely 4.

Thailand : SOUTH-EASTERN: Prachin Buri (Khao Yai); PENINSULAR: Chumphon, Nakhon Si Thammarat, Narathiwat, Pattani, Ronong, Satun, Surat Thani, Trang.

Distribution : Burma, Sumatra, Malay Peninsula, Moluccas (type), Celebes, Indochina, S China.

Ecology : In evergreen forests, often by streams, 50–800 m alt.

Vernacular : Cha sam kaeo (ช้าสามแก้ว) sam kaeo (สามแก้ว)(Peninsular).

Notes: Saurauia nudiflora DC. var. angustifolia Craib is based on Kerr 7196, from Bacho, Narathiwat. It is a young fruiting specimen with fruiting pedicles grouped in small fascicles, and with 3-branched style and glabrous young fruit. In the typical from of S. nudiflora DC. of the Malesian region, the flowers are mostly solitary, rarely in fascicles, the styles are five, and the ovary is densely pubescent. Therefore, I refer this specimen to S. tristyla DC. which is extremely common in the peninsular area.

E-version notes : The correct name for this species found in Thailand is Saurauia pentapetala (Jack) Hoogland, according to Rafidah, A.R. 2013. Actinidiaceae. In Flora of Peninsular Malaysia. Vol. 4: 5–24.