Two new species of Oreocharis in Vietnam 
297 
Fig. 1 . Oreocharis argyrophylla W.H.Chen, H.Q.Nguyen & Y.M.Shui. A. Habitat. B. Habit 
(scale bar 4 cm). C. Inflorescences (scale bar 3 cm). D. Flowers (scale bar 2 cm). (Photos: S.K. 
Nguyen) 
longitudinally; staminode 1.4-1.5 mm long, adnate to corolla tube 4-5 mm from base. 
Disc ring-like, c. 1.2 mm long, shallowly 5-lobed. Pistil 1.5-1.6 cm long, glabrous; 
ovary fusiform, 1.1-1.4 cm long, glabrous, unilocular; style glabrous, 4-5 mm long; 
stigma 1, peltate. Capsule straight, fusiform, loculicidally dehiscent, 3.3-4 cm long, 
with persistent style 5-6 mm long. Seeds fusiform, 5-6 x c. 2 mm. 
Etymology. The specific epithet refers to the silvery leaf indumentum. 
Ecology, distribution and phenology. The species grows as a lithophytic herb on large 
moss covered boulders in remnants of primary and secondary broad-leaved evergreen 
