ORCHIDEyE. 631 



150. S. grandiflora, Lindl. " Scape short, erect ; lip oblong, as long as the perigone : 

 hypochiliuni roundish, with 2 horns : epichilimu ovate, pointed, half as long as the solid, 

 flat-convex, obsoletely 3-dentate middle part."— "Flowers G" diam., when expanded, white, 

 and crimson on the lower part of the lip." — Hab. Trinidad {Lindl.). 



44. CATASETUM, Rick. 



Lip free, sessile, fleshy : perigonial divisions usually connivent, free. Column 2-cirrhous 

 (except in $ flowers) : " pollinaria 2 : caudicula large : gland thickish." — Scape radical ; 

 leaves plaited; flowers large, racemose, polygamous. 



15L C. tridentatum, Hook.! Leaves "oblong-lanceolate, acuminate;" perigone 

 "greenish- and purple-variegated, compressed, connivent " : divisions ovate, or ovate-oblong, 

 pointed j lip saccate-cucullate, 3-dentate at the summit. — Bot. Mag. t. 3329 : <? . Bot. Reg. 

 t. 1752 : 9 {Monachanthus viridis, Liudl.). — Flowers \±" long. — Hab. Trinidad, according 

 to cultivated specimens introduced from that island ; [Guiana, Brazil]. 



152. C. trifidum, Hook. ! Leaves oblong-lanceolate, shortly acuminate ; raceme cer- 

 nuous ; perigone " greenish, purple-dotted," converging from a spreading base : divisions 

 lanceolate, pointed; lip flat, S-fld, exceeded by the perigone.— Bot. Mag. t. 3262.— Myan- 

 thus cernnus, Lindl. {Cataseium,G. Echb.). — Flowers H"long. — Hab. Trinidad, accordiug 

 to cultivated specimens introduced from that island; [Brazil]. 



45. ONCIDIUM, Sw. 



Lip continuous with and spreading from the tumid base of the column, usually exserted- 

 flattish, lobed : perigonial divisions spreading, free, or the exterior lateral cohering. Column 

 low, winged at the summit : pollinaria 2, dorsally furrowed. — Scapes lateral, or terminal, 

 or scape-like peduncles axillary ; leaves leathery, rosulate ; flowers panicled, or racemose ; 

 lip membranaceous in the West Indian species. 



* Leaves equitant ; root fibrous. 



153. O. iridifolium, Kth. {R.). Leaves short, equitant, oblong-lanceolate, pointed, 

 about as long as the \-feio -flowered scapes ; perigonial divisions free, subequal ; lip " lamel- 

 late-crested at the base :" lateral segments small, roundish, contracted at the base, middle 

 much larger, 4-lobed, roundish; "wings of the column dentate." — Sw. Adnot. t. l.f. 3. — 

 Cymbidium pusillum, Sw. — l"-3" high; leaves 4'" broad; flowers "yellow:" lip 6'" long. 

 — Hab. Trinidad!, Cr. ,• [Mexico to Brazil]. 



154. O. triquetrum, R. Br. Leaves channelled-eqnitant, oblong-linear, curved, 

 pointed, about as long as the simple, 5-12-flowered scapes; perigonial divisions pointed, 

 interior ovate, exterior superior ovate-lanceolate, lateral cohering ; lip not crested, obsoletely 

 3-lobcd: lateral lobes roundish, middle twice as large, ovate, bluntish ; wings of the column 

 entire.— Bot. Mag. t. 3393— Cymbidium, Sw.— 4"-6" high; leaves 4"'-3'"(-l"') broad ; 

 flowers "white and densely purple-spotted -." lip 5'" long. — Hab. Jamaica!, Macf., Wullschl., 

 March. 



155. O. pulchellum, Hook. " Leaves channcl\ed-equ\tant,linear-obloi/g, pointed, slightly 

 curved, much exceeded by the divided, many-flowered scape ; perigonial divisions pointed,, 

 exterior lateral cohering to near the summit : lip lamellate-crested at the base : lateral 

 lobes roundish, half as large as the roundish, 2-lobed, sessile, middle lobe ; wings of the 

 column obliquely ovate-lanceolate, denticulate." — Bot. Reg. t. 1787- — " l'-W high; leaves 

 6'" broad ; flowers white with a rosy tinge, yellow crest, and red column-wings : lip about 

 8"' long." — Hab. Jamaica {Lindl.); [Guiana]. 



156. O. tetrapetalum, W. (Z.). Leaves channelled-equitant, oblong-linear, acumi- 

 nate, slightly-curved, entire, much exceeded by the simple, or divided, many-flowered scape ; 

 perigonial divisions interior obovate, repand, exterior spathulate, lateral cohering to near the 

 summit ; lip lamellate-crested at the base : lateral lobes small, oblong, blunt, somewhat 

 distant from the middle one, recurved ; middle lobe large, reniform-2-lobed, crciiate-repand ; 

 wings of the column half-ovate, blunt, subentire — Jacq. Amer. Ptct. i. 216.- Lpidcndrum, 

 Jacq. O. Lemonianum, Lindl. {Bot. Reg. t. 1789) : a few- and yellow-flowered form, ac- 

 cording to Antigua specimens, determined by G. Rchb., in which the lateral sepals arc 



