A revision of Microchirita in Thailand 
249 
R. et al. 7886 (BKF, E); Umphang-Maesod road, 500 m, 24 Apr 2004, Pooma, R. et al. 4643 
(BKF); Umphang, Ban Wa Khrue Kho, 543 m, 15 Oct 2014, Middleton, D.J. et al. 5699 (AAU, 
BKF, E, K, QBG, SING); Umphang, Doi Hua Mot Wildlife Sanctuary, 915 m, 17 Oct 2014, 
Middleton, D.J. et al. 5763 (AAU, E, K, QBG, SING); Tah Song Yang District, Tham Usu, 500 
m, 10 Sep 2009, Middleton, D.J. & Triboun, P. 4842 (BKF, E, P). 
Note. This species is recognisable by the pale lilac corolla and the glabrous anthers. 
14. Microchirita limbata C.Puglisi, sp. nov. 
Species characterised by the tubular corolla with white tube and blue lobes, and by 
the widespread glandular indumentum. It is most similar to Microchirita albocyanea 
C.Puglisi in the overall shape and colour of the corolla, but differs in the smaller 
flowers and in having a glandular indumentum. - TYPE: Thailand, Chaiyaphum, 
Khon San, Wat Tham Huang Po, 443 m, 19 October 2015, Suddee, S., Keiwbang, W., 
Hemrat, C. 4968 (holotype BKF; isotype SING). (Fig. 10) 
Herb to 80 cm tall. Habit caulescent, internodes 1-10 cm. Stems succulent, glandular 
hairy; branches sometimes arising from the petiole of the basal leaf. Leaves opposite, 
apart from the basal leaf; petioles 0.2-1.7 cm long, glandular hairy; blades mid green 
above, much paler beneath, lanceolate to elliptic, 3.1-13 x 0.6-5.2 cm, 1.6-5.2 times 
as long as wide, base shortly attenuate to acute, apex acute to acuminate, eglandular 
pubescent above and beneath, ciliate along the margin with glandular and eglandular 
hairs, margin entire or obscurely denticulate, 4-14 pairs of secondary veins, venation 
slightly sunken above and raised beneath in fresh material, flat in dry specimens, tertiary 
venation seldom visible in dry specimens. Inflorescences cristate, l-7(-12)-flowered; 
peduncles reduced or 1-7 mm long, fused with each other, glandular pubescent; 
bracts absent; pedicels pale green to green, 0.2-1.2 cm long, glandular pubescent. 
Calyx pale green, succulent at the base, tube c. 0.3 mm long, lobes lanceolate, 4.5-8 
x 0.7-1.5 mm, apex acuminate and thickened, margin entire, with mixed glandular 
and eglandular hairs on both sides, sparse inside, margin ciliate. Corolla 14-16 mm, 
tube white, throat white with a yellow patch at the base of the filaments, lobes purple- 
blue, tube narrow at the base, then becoming campanulate, only slightly curved, lobes 
almost equal, eglandular hairy outside except at base, densely glandular inside; tube 
11-12.5 mm long dorsally, 11-12 mm ventrally, 11.5-13.5 mm laterally between lips; 
lobes obtuse (broadly elliptic becoming triangular with a broad apex) with irregular 
margin, upper lobes 2-3 x 3.7-4.8 mm, lateral lobes 2.5-4 x 3.5-6.5 mm, ventral 
lobe 3.5-4 x 2.7-7 mm. Stamens arising 4-5 mm above the corolla base, filaments 
geniculate near the base, green-yellow, glabrous, 2-3 mm long, 0.3-0.4 mm wide; 
anthers white, with white to brown hairs throughout except for the apices, 1.9-2.5 
x 2.5-2.6 mm, apically coherent but not joined by a connective, or at most with a 
very weak and short ligature, thecae parallel or slightly divergent; lateral staminodes 
0.3-0.9 mm long, arising 3-3.8 mm above the corolla base, central staminode 0.2-0.3 
mm long, arising 3-3.6 mm above the corolla base. Disk annular, margin irregular, 
