628 ORCHIDEiE. 



33. B1FRENAR1A, Lindl. 



Character of MaxillariaJovX, caudicula; 2, distinct, linear. — Scape lateral to aerial tubers; 

 flowers expanded. | # 



136. B. aurantiaca, Lindl. 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, yellow, 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-callous at the base.— Bot. Reg. t. 1875.— Scape 8"-12", leaves 6"-8", perigone 6 

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



34. GOVENIA, Lindl. 



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

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

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

 leaves ; flowers in a loose spike. 



137. G. utriculata, Lindl. ! Leaves plaited, elliptical-oblong, pointed, geminate from 

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

 bracts as long as the ovary ; perigonial divisions lanceolate, blunlish, connivent-falcale ; 

 lip ovate-oblong, pointed, recurved. — Jacq. Frag?n. t. 32./. 4. Bot. Mag. t. 4151. — Cym- 

 bidium, Sw. Limodorum, Sw. — Scape H'-2', leaves 8"-12" or more, perigone 6" long.— 

 Hab. Jamaica !, Mac/., Pd., Wullschl., in moist woods ; [Cuba ! to Venezuela]. 



138. G. Hmbata, 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 3-lobed, cucullate below 

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

 channelled-winged. — Cymbidium, Rook. ! — 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, 2£" broad : spike as long ; perigone 10'" loug — Hab. Trinidad !, Shepherd. 



35. POLYSTACHYA, Hook. 



Lip jointed with the produced, claw-like base of the column, flatfish, 3-lobed : perigonial 

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

 4, collateral : caudicula setaceous, gland minute." — Stem leaved below or at the base ; 

 flowers small, in compound or simple terminal spikes. 



139. P. luteola, Rook. I Stem few-ieaved above the narrowly tuberous base ; leaves 

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

 usually compound, lateral short, subsessile : 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. Ed. Burm. t. 185. /. 1. — Cranichis, Sw. : Swartz's 

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

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

 Jf Us., Pd., Wullschl., on trees and rocks ; Dominica !, Imr. ; [Cuba ! to Guiana ! and 

 Peru!]. 



140. P. foliosa, G. Rchb. Stem few-leaved at the base ; leaves linear, bluntish, 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. Weigelti, G. 

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

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



36. ZYGOPETALTJM, Hook. 



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

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

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



