probably fusiform, about 1 em. long. Scape filiform, not 
greatly exceeding the leaves in length. Leaves two, basal, 
broadly elliptic, acute or acuminate, tapering into a short 
petiole at the base, 2-5 cm. long, 0.8—2 cm. broad, prob- 
ably becoming longer when mature. Inflorescence 1-flow- 
ered. Floral bract linear-lanceolate, acute or acuminate, 
6-12 mm. long, 1-8 mm. broad. Dorsal sepal rhombic- 
lanceolate, obtuse, slightly navicular, 8-nerved, about 8 
mim. long and 4 mm. broad. Lateral sepals broadly lan- 
ceolate, obtuse, faleate and somewhat asymmetrical, 
3-nerved, about 8 mm. long and 4 mm. broad. Petals 
linear-lanceolate, obtuse or acute, 2-nerved, about 6 mm. 
long and 1.5 mm. broad. Lip 3-lobed: lateral lobes lin- 
ear-lanceolate, acute, from the base of the lip about 7 
mm. long and 1.5 mm. broad; mid-lobe rhombic, obtuse, 
obscurely crenulate or entire, about 10 mm. long and 6 
mm. broad; spur very long and strongly curved toward 
the apex, probably somewhat flattened laterally, con- 
stricted near the apex, enlarged and saccate at the apex, 
22-30 mm. long, with its throat 8-5 mm. in diameter, its 
constriction 1—2.5 mm. in diameter, and its saccate por- 
tion about 5 mm. long and 3—4 mm. in diameter. 
Orchis constricta is not closely allied to any other 
species of Orchis known to the author. The following 
characters serve to distinguish the species: the one-flow- 
ered inflorescence, the very long curved spur which is con- 
stricted near the apex and the comparatively large size 
of the flower. 
Cutwa: Yunnan Province Wua chje, 3 days north of Muli, Yang- 
tze watershed, Prefectural District of Likiang, eastern slope of Likiang 
Snow Range. In forest, flowers purple. May-October 1922. Rock 
5592 (Tyre in Herb. Ames No. 46474). 
Oberonia latipetala L.O. Williams sp. nov. 
Herba parva, epiphytica, usque ad 12 cm. alta. Folia 
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