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34

THAI FOREST BULLETIN (BOTANY) 36

Thailand.— SOUTHWESTERN: Kanchanaburi [Huai Bankao, 12 Nov. 1971, van Beusekom, Phengklai, Geesink & Wongwan 3726 (P)]; SOUTHEASTERN: Chanthaburi [Khao Sabap, 9 Jan. 1930, Kerr 17966 (BK)]; Trat [Huai Rong, 19 Dec. 1929, Kerr 18065 (K) & 18065A (K); Khao Kuap, 20 May 1930, Put 2879 (BK); Khao Saming, 22 Jan. 1927, Put 517 (BK) & 534 (K); KhlongYai, Sala Ratcha Karun (Khao Lan), 24 March 2005, Kesonbua 133

(KKU)].

Distribution.— Endemic to Thailand.

Ecology.— In mixed deciduous, evergreen or bamboo forest, or on limestone hills; altitude 5–750 m. Flowering and fruiting periods: December to May.

Notes.— Tarenna pilosa is easily recognized by being pubescent throughout (especially leaves, inflorescences and young branchlets).

17. Tarenna puberula Craib, Fl. Siam. 2: 94. 1932. Type: Thailand, Surat Thani,Yanyao, 24 Feb. 1930, Kerr 18242 (holotype K!; isotypes BK!, BM!).— T. puberula Craib var. adpressa Craib in Fl. Siam. 2: 94. 1932. Type: Thailand, Chumphon, Langsuan, Pato, 3 March 1927, Kerr 12199 (holotype K!; isotypes BK!, BM!).— T. viridis Craib in Fl. Siam. Enum. 2(1): 97. 1932, synon. nov. Type: Thailand, Ranong, Kaper, 23 Jan. 1919, Kerr 16839 (holotype K!; isotypes BK!, BM!).

Thailand.— SOUTHWESTERN: Phetchaburi [Kaeng Krachan National Park, Thorthip Waterfall, 26Aug. 1995, Parnell, Pendry, Jebb & Boonthavikoon 95–442 (AAU, BKF, K, L, TCD)]; PENINSULAR: Chumphon [Langsuan, Pato, Kerr 12199 (BK, K), 27 Feb. 1927, Kerr 12151 (BM, K)]; Ranong [Kaper, Kerr 16839 (BK, K), Khlong Na Kha Wildlife Sanctuary, 25 Oct. 2004, Kesonbua 129 (KKU); La-un, Suwansiri Waterfall, 22 April 2005, Kesonbua 169 (KKU); Muang, Raksawarin Park, 2April 2005, Kesonbua 167 (KKU)]; Surat Thani [Yanyao, Kerr 18242 (BK, K), 19 Feb. 1930, Kerr 19341 (K)]; Krabi [betweenAo Luek and Krabi, 19 March 1960, Smitinand & Abbe 6578 (K)]; Nakhon Si Thammarat [Ta Samet, 28 Jan 1928, Kerr 14290A (BM, K)]; Satun [Khuan Don, 20 Oct. 2004, Kesonbua 115 (KKU)].

Distribution.— Endemic to Thailand.

Ecology.— In evergreen forest, usually along streams or by waterfalls; altitude 20– 300 m. Flowering and fruiting periods: October to March.

Vernacular.— Chan khon (´) (Peninsular).

Notes.— Tarenna puberula is distinguished by its short inflorescences, filiform calyx lobes and by being hairy throughout. The species closely resembles T. stellulata, but differs in its longer calyx lobes and dense hairs on the lower surface of the leaf. Govaerts et al. (2008) place this species in synonymy with T. attenuata. We compared type specimens of both species in detail. T. puberula Craib resembles T. attenuata in inflorescence size and leaf shape, but differs in having corolla lobes with apiculate apices and in having leaves which have scattered hairs all over the lower surface. Also, the species has several ovules per locule. Thus we used T. puberula as the name of the Thai species, as did Craib (1932).

18. Tarenna pulchra (Ridl.) Ridl., Fl. Malay Penins. 2: 107. 1923; Wong in Ng, Tree Fl. Malaya 4: 410, 415. 1989; Turner, Gard. Bull. Singapore 47: 448. 1995.— Webera pulchra

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