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Card. Bull. Singapore 69(2) 2017 
Fig. 8. Microchirita karaketii D.J.Middleton & Triboun. A. Fruit. B. Habit. C. Side view of 
the flower. D. Front view of the flower. A, C, D from Middleton, D.J. et al. 4526\ B from 
Middleton, D.J. et al. 4536. (Photos: A-C, D.J. Middleton; D, P. Karaket) 
checkpoint, 750 m, 30 Sep 2009, Middleton, D.J. et al. 5017 (E). Mae Hong Son: Phang 
Mapha, Viewpoint, 867 m, 12 Sep 2013, Lakoet, C. 400 (QBG). 
Notes. The description provided is a slightly updated version of the original description 
by Middleton & Triboun (2013). Microchirita karaketii is recognisable from its colour 
pattern (white corolla, with a ventral yellow line and lateral violet markings). Other 
species with a similar colour pattern are Microchirita huppatatensis and M. tubulosa, 
which, however, differ greatly in the shape of the corolla and the anther indumentum. 
Microchirita karaketii is otherwise remarkably similar to M. bimaculata, which is 
bright yellow with dark brownish markings. Although the two species are sympatric 
in northern Thailand, no intermediate colour forms have been observed. Microchirita 
karaketii has flowers smaller than M. bimaculata , and its dry leaves do not acquire the 
yellowish hue observed in M. bimaculata. 
