ADA. 
PERIANTHIUM clausum, apice patulum 
Sepata subzequalia, acuminata; lateralibus basi pauld 
obliquis. 
Peraa conformia breviora. 
Lasettum elongatum, indivisum, c. columné parallelum 
eique basi adnatum ; lamellis 2, membranaceis, in appendicem 
linearem truncatum connatis. 
oLumNa aptera, ceterim Oncidii, basi convexum dilatatum 
et marginatum. Stigma excavatum 
PoLiinia 2, cereacea, posticé sulcata ; caudicula brevi, obo- 
vata ; — ‘circulari.. Anthera Oncidii, ecristata. 
epiphyta, Americe tropicze, abitu omnino Brassice 
eu: glumacee. Scapus — Spica cylindracea, 
simplex, bracteis membranaceis. Ylores xanthi 
This is a remarkable plant, with brilliant mage slated flowers collected 
in a close raceme envelo in thin cucullate membranous bracts, and never 
opening except at their point. The leaf is neat six inches long, narrow, 
channelled, rather shorter the scape, which bears two distant mem- 
branous sheaths. Mr. Linden referred it to Brassia ; from which, however, 
it differs in some im ticulars :—1, the lamellz of 
fiuent branous ; 2, the lip is parallel with the column and solidly 
united to the base of it ; 3, the column is twice as long as in other B. 
i at the base; 4, the caudi and obovate, while 
and thin-edg: cle is short 
the gland is cireular. For this Feason I place it atthe end ofthe glamaccous 
rassias. Possibly it may be related to Rehb.’s genus Brachtia, a plant of 
which I have no iaowied ge. 
i: aurantiaca. 
Folium canaliculatum. Scapus longior bisquamatus. Bractez 
cucullatzee membranacese ovariis subsessilibus multo — 
Flores apice tantum patuli, se sepalis petalisque lineari-lanceo 
acuminatis. Labellum lineari-lanceolatum acutissimum convexum 
columne elongate basi adnatum ; lamellis memb: 
apice truncatis acutis basi intus pubescentibus. 
Wild in New Grenapa; in the province of Pamplona, at the 
height of 8500 feet above the sea— Schlim, 121, (v. s. sp. comm. 
cel. Linden). 
Dec. 1, 1852. 
