.218 ORCHIDS Of THE SIKKIM.HIMALAYA. 
Anther 1- or imperfectly 2-celled ; a two, entire or bipartite. Species about 55, 
natives of Eastern Asia. · 
Spur without septum or callus. 
‘Spur of lip cylindric, straight or curved. 
Spur long, more or less parallel to the ovary, straight. 
Apical lobe of lip decurved, transversely rugulose ; caudicle of 
pollinia slender, not dilated at the apex; flowers in panicles 
or umbels; stems very stout, elongate ; leaves large; flat, 
keeled. 
Flowers in umbels oo ee Ces At АГ МЕР 4 M. A. $4 5% 3, 8. papillosum. 
Flowers in panicles. 
Panicles longer than the leaves, many-branched . . 2. 8. ochraceum. 
Panicles shorter than the leaves, few-branched — . . 8. 8. longifolium. 
Spur long, slender, curved, not parallel to the ovary; flowers in 
racemes. | 
Spur curved backwards; apical lobe of lip narrow, tongue-like, 
side lobes none; caudicle of pollinia slender, not dilated at 
the apex; stem 3 to 5 in. long, stout; leaves rigid, keeled . 4. 8. ampullaeeum. 
Spur curved forwards ; apical lobe of lip broadly triangular, 
acute, much decurved; side lobes small, rounded; caudiele of 
` pollinia dilated towards the apex; leaves flat, stem under 
5 leg. KS (Y 4 uU is с змор x 0 АРЫ 
. Spur of lip infundibuliform. 
Spur long, curved forwards; apical lobe d often fleshy, glabrous; 
caudicle of pollinia broadly cordate or 2-lobed -at the apex, 
the pollinia attached by a hooked process; flowers in racemes; 
leaves flat, keeled, stems elongate. 
Racemes longer than the leaves 
Racemes shorter than the leaves. 
Side lobes of lip rounded, erose; leaves not тей 
3 in. in length 
кое v A 5 4 4 6 E * 6 
S. obtusifolium. 
. ۰ . » 
м 
s IS. acuminatum. 
Side lobes of lip none; leaves narrow, E ps 5i in. dani : 6. S. lancifoliun. 
Spur short with а very wide mouth and a bulbous bifid apex ; ! 
the pollinia sessile on the dilated apex of the caudicle ;. apical 
lobe of lip narrowly ен flowers i in pantoles, stem = 
leaves flat . . 
ie „ . . . `9. S. buccosum. 
Spur of lip short, wide, mob at right Nc to da opu. 
. Apical lobe of lip semi-circular or reniform, fimbriate or papillose; 
caudicle of pollinia filiform; flowers in corymbose racemes or 
umbels; leaves flat, not setulose. | 
Stemless; upper surface of lip nm smooth, its edges тым 
laciniate è 10. S. dasypogon. 
Stem short ; SS pres ot is NU bi: of the d : 
papillose-hairy «ja. Ux cw. 9o. € w * V V wow V JES OE aes. 
Apical lobe of lip semi-eireular, not lobulate, densely 
fringed with white fimbres, spur with three faint 
external ridges . . 12. S. intermedium. 
Apical lobe reniform, 3-lobulate, the ils ырысы 
the upper surface glabrous except а broad papillose- 
pubescent border; spur with one internal ridge . . . 13. 8. aculifolium. 
