236 
Card. Bull. Singapore 69(2) 2017 
Distribution. Northern Thailand (Tak). 
Habitat. On limestone in secondary forest. 
Provisional IUCN conservation assessment. Critically Endangered CR Blab(iii,iv) + 
B2ab(iii,iv). This species is only known from the type collection growing in a mixed 
population with Microchirita personata. The limestone range there is only about 12 
km 2 in total and is subject to disturbance from tourism. There are no collections from 
the nearby Khao Pha Ra, and the area is surrounded by cultivated land. 
Notes. Microchirita huppatatensis is most similar to M. woodii D.J.Middleton & 
Triboun in the pattern of the corolla colour, but differs in the shorter corolla tube, 
acuminate leaves and the overall corolla shape. The description and measurements 
reported here match the original description (Puglisi et al., 2016), as no new specimens 
have been collected since. 
10. Microchirita hypocrateriformis C.Puglisi, sp. nov. 
Differs from all other species of Microchirita (C.B.Clarke) Yin Z.Wang in the 
combination of long, narrow corolla tube, abruptly opening into spreading limb, in the 
long lower corolla lobe, and in the presence of a fringe of glandular indumentum at the 
base of the upper lip. - TYPE: Thailand, Chaiyaphum, Khon Sarn, Wat Tham Huang 
Po, 400 m, 19 October 2015, Suddee, S., Keiwbang, W., Hemrat, C. 4967 (holotype 
BKF; isotype SING). (Fig. 6) 
Herb to 50 cm tall with elongated stem runners. Habit caulescent, internodes 4-10 cm. 
Stems succulent, with sparse eglandular indumentum; branches sometimes arising from 
the petiole of the basal leaf. Leaves opposite, apart from the basal leaf; petioles 3-7 mm 
long, sparsely eglandular hairy; blades pale green above, paler beneath, lanceolate to 
elliptic, 3.5-22.5 x 2.4-17.5 cm, 1.1-2.4 times as long as wide, base shortly attenuate 
to cordate, apex acute to acuminate, sparsely eglandular tomentose above and beneath, 
ciliate along the margin, margin entire or sparsely and minutely denticulate, 5-17 
pairs of secondary veins in the opposite leaves, venation slightly sunken above and 
raised beneath in fresh material, flat in dry specimens, tertiary venation inconspicuous. 
Inflorescences cristate, peduncles reduced or to 6 mm long, not fused with each other, 
bracts absent; pedicels pale green, 0.5-2.5 cm long, pubescent. Calyx green, the two 
lips completely divided, ventral tube c. 1 mm long, dorsal tube c. 0.3 mm long, lobes 
ligulate to lanceolate, 12-15 x 1.7-3 mm, apex acute and slightly thickened, margin 
entire or with 1-few minute teeth, succulent at the base, eglandular hairy on both 
sides, outside with a dimorphic indumentum of fine and large eglandular hairs, inside 
hairy only towards the tip. Corolla 20-25 mm long, tube white outside, limb white 
or dark violet-blue with a bright yellow/orange stripe inside tube ventrally, which 
can almost circle the throat, tube narrow, more or less curved, abruptly opening up 
into spreading lobes, tube glabrous, lobes eglandular pubescent outside, inside with a 
