628 OUCHIDEiE. 



83. BIFRENARIA, Undl. 



Character of Maxillaria, but eaudicnlse 3, distinct, linear. — Scape lateral lo aerial tubers; 

 flowers expanded. 



136. B. aurantiaca, TJindl. Tubers roundish, sub-4-gonal, 1-2-leaved ; leaves plaited, 

 elliptical-oblong, pointed, contracted into a short petiole, as long as or exceeded by the scape ; 

 flowers racemose, yeUow, orange-spotted ; perigonial divisions ovate or oblong, pointed ; lip 

 3-partite above the claw : lateral lobes rounded, middle broader than long, rounded-subtrun- 

 cate, 2-caUons at the base.— 5o<. Reg. t. 1875.— Scape 8"-12", leaves 6"-8", perigone 6'" 

 long. — Hab. Trinidad !, Bradf., uncommon ; [Guiana]. 



34. GOTENIA, Undl. 



Up jointed with the produced base of the column, channelled below : perigonial divisions 

 exterior lateral adhering to the column at their tapering base. Column winged : " pollinaria 

 of Maxillaria, caudicula short, gland small, deltoid." — Scape terrestrial, lateral to the 

 leaves ; flowers in a loose spike. 



187- G. utriculata, ZsW/. .' ££ai;«« ^^ai^et^, elliptical-oblong, pointed, geminate from 

 a sheathed, fusiform tuber, exceeded by the scape ; flowers snbdistant, nodding, white : 

 bracts as long as the ovary ; perigonial divisions lanceolate, bluntish, eonniverd-falcaie ; 

 lip ovate-oblong, pointed, recarved. — Jaeq. Fragm. t. 32./. 4. Bot. Mag. t. 4151. — Cym- 

 bidium, Sw. Limodomm, Sw. — ^Scape li'-2', leaves 8"-12" or more, perigone 6" long. — 

 Hab. Jamaica!, Macf., Pd., Wullsehl., in moist woods; [Cuba! to Venezuela]. 



138. G. limbata, Gr. Leaves leathery, oblong, bluntish, tapering at the complicated 

 base ; flowers distant : bracts minute, much shorter than the ovary ; perigonial divisions 

 linear, blunt, spreading, lateral exterior recurved-spreading ; lip Z-lobed, cucullate below 

 the divisions, fleshy-callous within ; middle lobe oblong, blunt, somewhat recurved ; column 

 channelled-winged. — Cymbidium, Hooh. ! — The structure of the pollinaria is still unknown, 

 the species having been described from a single, imperfect specimen. Leaf (a single is ex- 

 tant) 12" long, 2i" broad : spike as long ; perigone 10'" long.— Hab. Trinidad I, Shepherd. 



35. POLYSTACHYA, Hook. 



lAp jointed with the produced, claw-like base of the column, flattish, 3-lobed ; perigonial 

 divisions exterior lateral broadly adnate to the column. Column low, naked : " pollinaria 

 4, collateral ; caudicula setaceous, glaud minute." — Stem leaved beloio or at the base ; 

 flowers small, in compound or simple terminal spikes. 



139. P. luteola, Hook. 1 Stem few-leaved above the narrowly tuberous base ; leaves 

 oblong-linear or lanceolate-oblong, bluntish, slightly recurved, exceeded by the stem ; spiltes 

 usually compound, lateral short, suhsessUe : flowers greenish-yellow, glabrous ; lip 3-lobed 

 to the middle ; lateral lobes bluntish, middle obovate-trapezoid, undulate : callus produced 

 from the base to the division.— Plum. JSd. Barm. i. 185. f. 1. — Cranichis, Sio. : Swartz's 

 species is doubtfully referred by G. Echb. to his P. extinctoria, a Jamaica form unknown 

 to myself. — 6"-12" high ; leaves 4"-6", perigone 2"', ovary 4"' long. — Hab. Jamaica !, 

 H Us., Pd., Wullsehl., on trees aud rooks ; . Domiuica !, Imr. ; [Cuba ! to Guiana I and 

 Peru!]. 



140. P. foliosa, 0. Rchb. Stem few-leaved at the base ; leaves linear, blimtish, re- 

 curved, equalling or exceeding the scape ; spikes slender, lateral short, distant ; lip shortly 

 3-lobed, callous at the base : middle lobe furfuraceous. — Stelis, Hook. P. Weigdti, (?. 

 Rchb. /— 2"-5" high : leaves 2"'(-4" ') broad ; perigone 1"', ovary 2'" long.— Hab. Jamaica ! 

 Wullsehl., Trinidad !, Pd., [Guiana !]. 



36. ZYGOPETALUM, Hook. 



Lip continuous or slightly jointed with the shortly produced base of the colnma, dilated, 

 concave below : perigonial divisions spreading, exterior lateral and 2 interior adhering to 

 the column. Column nalced or margined above : pollinaria 4, incumbent, the posterior often 



