300 
Card. Bull. Singapore 69(2) 2017 
Notes. The new species is similar to Oreocharis argyreia in its leaf characteristics 
(silvery indumentum with densely appressed hairs), but can be distinguished easily by 
its yellow corolla which is also of a different size and shape. The differences between 
the two species are detailed in Table 1. In Indo-China, Oreocharis argyrophylla is also 
quite similar to O. hirsuta from northern Thailand in the yellow and tubular corolla, 
but differs in the densely appressed pubescence on the leaves and the cuneate leaf 
base (hirsute hairs and obtuse to rounded base in O. hirsuta), more unequal upper and 
lower corolla lips (subequal lips in O. hirsuta ), and anthers coherent in pairs (free in 
O. hirsuta). 
Oreocharis blepharophylla W.H.Chen, H.Q.Nguyen & Y.M.Shui, sp. nov. 
This species is similar to Oreocharis magnidens Chun ex K. Y.Pan in leaf characteristics, 
but differs from it in the linear bracts and calyx lobes (vs ovate in O. magnidens), 
a slightly 2-lipped corolla (vs strongly 2-lipped), a cylindrical corolla tube without 
inflated base (vs a corolla tube with inflated base) and coherent anthers (vs free anthers). 
In habit characteristics it is also similar to Oreocharis curvituba J.J.Wei & W.B.Xu but 
differs from it mainly in having narrowly obovate corolla lobes with purple stripes at 
base (vs narrowly oblong without purple stripes in O. curvituba). - TYPE: Vietnam, 
Son La province, Van Ho district, Chieng Xuan municipality, Co Hong village, territory 
of Xuan Nha nature reserve, Pha Luong Mountain, at an elevation of 1200-1400 m, 
20°4T40.5"N 104°39'24.7"E, 13 November 2013, in flower, Averyanov, L., Hiep, N.T., 
Khang, N.S., Thang, N.D. & Qui, L.D. CPC 7019 (holotype KUN; isotypes CPC, LE). 
(Fig. 3, 4) 
Perennial herb with very short stem. Leaves rosulate, petiolate; petiole 1.1-2.9 cm 
long, densely spreading villous; blade narrowly obovate to elliptic, 3.5-6 x 2-3.8 cm, 
adaxially with tuberculate setae, abaxially with sparsely strigose hairs along veins, 
base cuneate, margin crenulate and ciliate, apex short acuminate to obtuse, lateral veins 
5-6 on each side of midrib, indistinct adaxially and distinct abaxially. Inflorescences 
axillary, with few flowers; peduncles 5-6 cm long, spreading villous; bracts 2, linear, 
2.4-3 x 0.4-0.5 mm, adaxially glabrous and abaxially villous, margin entire; pedicels 
8-9 mm, white villous. Calyx of 5 lobes free to base, lobes equal, linear, 6-7 x 1-1.2 
mm, glabrous adaxially, villous abaxially, margin entire. Corolla purple with white 
limb, 2-2.4 cm long, outside pubescent, inside glabrous; tube cylindrical, purple, 
1.1-1.2 cm long, 2.1-2.2 mm in diam., not constricted at throat; limb 2-lipped, white 
with purple stripes at the base; adaxial lip 2-lobed, dissected from near base, lobes 
broadly obovate, 6-8 x 4-5 mm, apices rounded or slightly retuse; abaxial lip 3-lobed, 
lobes subequal, obovate, 9-12 x 5-7 mm, broadening from the base, apices rounded 
or slightly retuse. Stamens 4, anthers coherent in 2 pairs; adaxial stamens 1.5-6 
mm long, adnate to corolla tube 2.5-3 cm from base, abaxial stamens 2.6-3.1 mm 
long, adnate to corolla tube 5-6 mm from base; filaments glabrous, slender; anthers 
basifixed, subglobular, 2-locular, dehiscing longitudinally; staminode c. 1.2 mm long, 
adnate to corolla tube from the base. Disc ring-like, 1.2-1.4 mm in diam., shallowly 
