122 
HEXADESMIA DBoriviENsis Rolfe sp. n. 
Stems branched, internodes slender, 3-7 ia. long, apex 2-leaved. 
Leaves linear, obtuse, 4-6 in. long, 2-377 lin. broad. Flowers in 
fascicles of 1—4; pedicels slender, 5-7 lin. Bracts lanceolate, acumi- 
nate, I 14 lin. long. Sepals lanceolate, acute, 3 lin. long, the lateral 
ones a little broader and subfalcate. Petals linear-lanceolate, acute, 
3 lin. long. Lip obovate-spatulate, 3-lobed, 3 lin. long, 174 lin. 
broad ; lateral lobes rounded; front lobe roundish-oblong, emar- 
ginate; disc with five slender linear undulate keels. Column slen- 
der, arcuate, 277 lin. long. Chin oblong, obtuse, 77 lin. long. 
Between Guanai and Tipuani, n. 1 329. 
Allied to H. stenopetala Rchb. f., but rather stouter, the leaves 
broader, and the flowers twice as large. ‘The pollen has all been 
removed, but the plant has precisely the habit of this genus; which, 
however, closely resembles Scaphyglottis in habit. 
Epidendrum paniculatum R. & P. Syst. Veg. 243. Mapiri, July- 
ug., 1892 (1552). 
Epidendrum Schomburgku Lindl. Bot. Reg. (1838) Miscel. 15. Es- 
pirito Santo, 1891 (1284 and 12842). 
ONcIDIUM PUSILLUM (L.) (Epidendrum p. L. Sp. Pl.ed. 2: 1352— 
Oncidium | iridifolium H.B.K. Nov. Gen. 1: 344) Between 
Guanai and Tipuani, Aput Jose. 1892 (1330). 
Selenipedium caricinum (Lindl. & Paxt.) Reichb. f. Bonplandia 2: 
. (1854) 116 = Cypripedium c. Lindl. and Paxt. Fl. Gard. 1: 39 
(1850-51). Espirito Santo, 1891 (1285). 
Habenaria maculosa Lindl. Gen. et. Sp. Orch. 309. Espirito 
Santo, 1891 (1239). 
RUSBYELLA Rolfe n. gen. 
Sepals suberect, the lateral ones connate for two-thirds their 
bore Petals suberect. Lip erect, with a long narrow unguis, 
which is bordered with a narrow membranaceous border below the 
middle, and above this three tooth-like appendages, two of them 
lateral; terminal limb broadly cordate. Column footless, clavate, 
_ truncate, nearly wingless; anther oblong, stipes of pollen slender. 
A new genus allied to Cohnia Rchb. f, and Sigmatostalia 
Rchb. f., but differing in various details of the flower. The struc- 
ture of the lip is very curious. 
RUSBYELLA CAESPITOSA Rolfe sp. n. 
Pseudobulbs densely tufted, ovoid-oblong, subcompressed, 
