262 
Card. Bull. Singapore 69(2) 2017 
Another characteristic feature of Microchirita oculata is the dense white indumentum 
on the pedicels and calices. Floral dissection of the material available suggest this 
species to be strongly protandrous. 
20. Microchiritapersonata C.Puglisi, Kew Bull. 71(l)-2: 1 (2016). - TYPE: Thailand, 
Uthai Thani, Lan Sak, Huppatat Non Hunting Area, 122 m, 14 October 2014, Middleton, 
D.J., Hemrat, C., Karaket, P., Puglisi, C. & Suddee, S. 5688 (holotype BKF; isotypes 
AAU, E [E00663026], K, SING). (Fig. 13A-C) 
Herb to 35 cm tall. Stems fleshy, pale green, glabrous or sparsely hairy. Leaves 
opposite, with the exception of the single basal leaf, fleshy (very thin when dry); 
petioles 0.1-0.5 cm long, sparsely hairy; blades pale green above, pale grey-green 
beneath, lanceolate, 3.4^10 x 1.7-29 cm, 1.3-2.2 times as long as wide, base usually 
rounded obtuse, sometimes slightly cordate or slightly decurrent, apex acuminate to 
acute, minutely tomentose above and beneath, margin entire, 6-11 pairs of secondary 
veins in the opposite leaves, 8-14 pairs in the basal leaf, venation raised beneath in 
fresh material, tertiary venation barely visible and loosely reticulate. Inflorescence 
epiphyllous, many-flowered (10 to more than 20 flowers), cristate; peduncles reduced; 
bracts absent; pedicels pale green, 5-13 mm long, pubescent. Calyx green, slightly 
bilabiate, tube 0.4-0.7 mm long, lobes lanceolate, 4-7 x 0.4-0.6 mm, membranous 
along the margins, apex more or less narrowly obtuse, outside eglandular hairy 
throughout, inside only towards the apex. Corolla 7-10 mm long, tube greenish white, 
upper lip pale green, lower lip white, with a densely papillose yellow marking at base, 
tube narrowly tubular, mouth personate due to the raised ventral lip, upper lip strongly 
reflexed upwards, tube glabrous at the base, limb densely pubescent outside, densely 
papillose inside; tube 4-8 mm long dorsally, 6-9 mm ventrally, 4-7 mm laterally 
between lips; upper lobes small and elliptic, 0.7-0.8 x 1-1.3 mm, lower lateral lobes 
elliptic, 1.5-1.8 x 2.2-2.3 mm, lower central lobe elliptic, 1.2-1.3 x 1.8-3 mm. 
Stamens arising 2.7-3.7 mm above the corolla base, filaments pale green, glabrous, 
0.5-1.2 mm long; anthers white, glabrous, 1.1-1.7 x 0.3-0.5 mm, apically joined by 
a connective, thecae slightly divergent; lateral staminodes absent or to 0.2 mm long, 
arising c. 1.7 mm above the corolla base, central staminode extremely reduced or 
absent. Disk a ventral lobe, 0.6-1 mm high. Pistil 2.2-2.3 mm long; ovary urceolate, 
c. 1.5 mm, glabrous or sparsely glandular at base, apically eglandular hairy; style c. 
0.6 mm, hairy; stigma broadly bilobed, lobes 0.1-0.2 mm long, rounded. Fruit green, 
1-3 cm long, 1-2 mm diam., hairy almost exclusively in the terminal half, straight or 
curved. Seeds pale brown, elliptic, 0.4-0.5 x 0.2-0.3 mm. 
Distribution. Northern Thailand (Uthai Thani). 
Habitat. On limestone in secondary forest. 
Provisional IUCN conservation assessment. Critically Endangered CR Blab(iii,iv) + 
