197 
PLEUROTHALLIS roscirotta. 
Ruscus-like Pleurothallis. 
GYNANDRIA MONANDRIA.—Nar. Orv. ORCHIDEZ. 
Gen. Cuar.—Labellum articulatim connexum cum basi simplici vel brevis- 
sime producta columne. Petala 2, antica exteriorum inferne connata. 
Masse pollinis 2, exsulce.—Br. 
Pleurothallis ruscifolia ; caule elongato unifolio, folio ovato-lanceolato, 
floribus in sinu folii aggregatis—Br. 
Pleurothallis ruscifolia, Br. in Hort. Kew. v. 5. p. 211. 
Dendrobium ruscifolium, Witt. Sp. Pl. v. iv. p. 135. 
Epidendrum ruscifolium, Jaca. Amer. p. 226. t. 133. f. 3.—Linn. Sp. Pl. 
p. 1353. 
Helleborine Rusci majoris folio, PLum. Sp. i 176. e-2, 
Parasitic ; throwing out from ‘its base many simple, whitish, waved, fi- 
brous roots. Stem 7-8 inches high, slender, erect, filiform, having 3 or 
4 sheathing scales, jointed at the extremity, where it is terminated by 
an oblongo-lanceolate, somewhat recurved, subcoriaceous, nerveless, so- 
litary leaf: from the axil of this leaf is seen to arise 2 large ovato-cor- 
date, opposite bracteze, enclosing 3 or 4 simple or forked slender pe- 
duncles, scarcely an inch Jeng, and each furnished with 2 or 3 small — 
bractee. 
Flower small, pale yellow-gleaal erect. Petals connivent; the Pircess outer 
ones linear-lanceolate: uppermost one 3-nerved; two anterior ones 
united, so as to form a single 4-nerved petal: two lateral petals small, 
linear, single-nerved. Lzp small, lanceolate-entire, undulate. Column 
very small. Germen clavate. 
os This was likewise gathered by Mr C. 8. Parker in Trini- 
A dad, and being preserved i in spirits, I have been enabled to make 
the accompanying figure. 
We have living plants of it in our Garden, which were sent 
from the s same island by! ype late Baron DE ScHACckK; but they 
A VoL. un | 
