A revision of Microchirita in Thailand 
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long, 0.4-0.7 mm wide, with a small projection at the anther’s insertion; anthers white, 
hairy dorsally and on the upper and lower surfaces, hairs sparse to abundant, 1.7-2.5 x 
1.3-1.9 mm, apically weakly joined by a thin connective, free in old specimens, thecae 
slightly divergent, anthers whitish, apices slightly acuminate; lateral staminodes 0.7-3 
mm long, to 0.1 mm wide, arising 8.5-10 mm above the corolla base, hairy at the tip, 
central staminode 0.3-0.7 mm long, arising 8-10 mm above the corolla base, often 
inconspicuous. Disk annular (some specimens appear to have a partial disk, probably 
due to breakage?), margin irregular to lobed, 0.2-0.6 mm high. Pistil 12-20 mm long; 
ovary 6.5-10 mm long, glabrous, many ovules; style green, 0.4-0.7 cm, glandular 
pubescent; stigma white, broadly bilobed, lobes 0.5-2.5 mm long, 0.4-0.7 mm wide, 
elliptic, often glandular hairy outside. Fruit light green, turning brown at maturity, to 
10 cm long, glabrous or with persistent style hairs distally, straight or slightly curved. 
Seeds brown, broadly elliptic, c. 0.4 x 0.2 mm. 
Distribution. Thailand. Vietnam, Cambodia, Malaysia. 
Habitat. Lithophyte on different types of rocks, in shaded areas in evergreen forest. 
Provisional IUCN conservation assessment. Least Concern LC. This variety is 
common and widespread. 
Additional specimens examined. Unknown locality: Smith, E. 71 (BK); Cult. 11172 coll. 
7/11/1929 (ABD [2 sheets]), Cultivated at RBGE from material grown at Botanische Anstalt 
University, Basel, acc. 801771, P12, C13666 (E); Cult Aberdeen “150”, no data (ABD), Cult 
Aberdeen “180” (ABD); Near Langkawi, 15 Jan 1916, Annandale, N. 1850 (SING); Kaw Koh 
Suwan near Langkawi, 14 Jan 1916, Annandale, N. 1833 (SING); Koh Si Kah, 17 Jan 1916, 
Annandale, N. 1589 (SING); Koh Si Kah, 17 Jan 1916, Annandale, N. 1590 (SING). 
THAILAND: Ayutthaya: s.l., 8 Jan 2496 [1953], Piyakarnchown, T. 11 (BK). Chonburi: Si 
Racha, Chan Ta Then Falls, 300^100 m, 17 Nov 1974 Maxwell, J.F. 74-988 (BK); Sattahip, Si 
Chon Tiam, Nong Nooch BG, 6 Sep 2004, Palee, P. 715 (CMUB); Sriracha, 14 Nov 1926, Put, 
N. 444 (ABD, BK, BM, K); Sriracha, Nong Nam Kheo, 240 m, 15 Nov 1926, Collins, D.J. 
1277 (K); Hoop Bon, Sriracha forest, c. 400 ft, 25 Oct 1927, Collins, D.J. 1694 (K); Si Racha, 
Kow Kieo, 200 m, 20 Oct 1975, Maxwell, J.F. 75-1064 (E). Chumphon: 24 Mar 1971, Bogner 
434 (E); Cultivated RBGE from Bogner 434, C8252 (E); Sawi, Khao Thalu, 31 Dec 1999, 
Wongprasert, T. 9912-04 (BKF); ibid., 5 Dec 1999, Wongprasert, T. 9912-14 (SING); Lamae, 
Tham Khao Phu, 25 m, 7 Feb 2005, Williams, K. et al. 1259 (A, BKF, E); Mueang Chumphon, 
Wat Tham Khao Khun Krating, 70 m, 12 Jun 2006, Williams, K. et al. 1666 (A, BKF, E); Thun 
Tako, Ban Khao Talu, 4 Dec 2002, Koonkhunthod, N. et al. 308 (BKF); Sawi, Khao Thalu, 5 
Dec 1999, Wongprasert, T. 9912-20 (BKF); Pa Thieo, Thale Sap, Wat Tham Thale Sap, 50 m, 
17 Dec 2006, Pooma, R. et al. 6372 (BKF); Sawi, Khao Khai, Tham Thip Prida San Chang 
Len, 70 m, 26 Dec 2006, Pooma, R. et al. 6680 (A, BKF); Bang Son, 10 Sep 1927, Put 1042 
(K); Bang Son, 10 Sep 1927, Put, N. 1035 (BM, K); Sapli, 9 Sep 1927, Put, N. 1021 (BK, BM, 
K); cultivated in Edinburgh from seeds from Bogner 424, Nov 1971, C8251-71-0977 (E [2 
sheets]); Luang Suan, 23 Mar 1971, Bogner 424 (E); Kao Muang, c. 20 m, 11 Jan 1927, Kerr, 
A.F.G. 11368 (BK, BM, K). Krabi: Cultivated in Penang BG, flowered in Aug 1897, Kasoom, 
Nov 1896, Curtis 3221 (SING [2 sheets]); Khao Phra Bang Wildlife Reserve, 50 m, 5 Oct 1996, 
