equitantia, lanceolata, acuta vel acuminata, coriacea. 
Bracteae inflorescentiae aristatae, basi ovatae. Inflores- 
centia spicata cum floribus confertis. Sepalum dorsale 
oblongo-lanceolatum, obtusum, sine nervum, dorso paulo 
echinatum. Sepala lateralia sepalo dorsali similia. Petala 
ovalia, obtusa, trinervia, minute ciliata. Labellum sim- 
plex, obovatum, infra medium constrictum, basi auricu- 
latum, apiculatum, ciliatum et supra pubescens. 
A small epiphytic herb,up to about 12 em. tall. Roots 
few, small, glabrous or possibly somewhat pubescent. 
Leaves equitant, lanceolate, acute or acuminate, coria- 
ceous, 1.5-5 em. long, 0.8-0.7 em. broad. Inflorescence 
spicate,many-flowered,dense. Floral bracts ovate-lanceo- 
late, the upper ones acuminate, the lower ones becoming 
smaller and long-aristate. Dorsal sepal oblong-lanceolate, 
obtuse, without nerves, minutely echinate dorsally, about 
2mm. long and 1 mm. broad. Lateral sepals similar to 
the dorsal sepal. Petals oval, obtuse, 3-nerved, minutely 
ciliate, 2-2.5 mm. long, 1.5-2 mm. broad. Lip simple, 
obovate, somewhat constricted below the middle and in- 
conspicuously auriculate at the base, short-apiculate at 
the apex, 3-nerved with the median nerve often obscure, 
ciliate, finely pubescent on the upper surface, 1-1.5 mm. 
long,0.75-1.25 mm. broad. Column about 0.5 mm. long. 
Oberonia latipetala is not closely allied to any species 
known to occur in China or India. It may be distin- 
guished by the very broad petals, by the sepals which are 
minutely echinate dorsally and by the simple lip which 
is Shghtly auriculate at the base and somewhat constrict- 
ed below the middle. 
Cuina: Yunnan Province, camp at Ya ‘Tau Pa,between Tengyueb 
and Lungling. Epiphyte, flowers greenish. October 21, 1922. Rock 
7117 (Tyre in Herb. Ames No. 46475). 
[ 166 | 
