cxxii. oucuidacetE. 359 



Back sopal spiirlcss, forming with the pe- 

 tals a galea. 

 Lateral sepals spreading, petaloid, saccate 



or spurred 39. DiSPEEiS. 



Lateral sepals not saccate or spurred. 

 Labellum clawed, lunate ; column 



horseshoe-like 35. Ceeatandea. 



Labellum sessile. 



Petals unequally -lobed ; anther erect 36. Ommatodium. 

 Petals undivided ; anther resupinate. 

 Sepals petaloid ; galea wide- 

 mouthed 37. Pteeygodium:. 



Sepals membranous ; galea with a 

 narrow mouth, the petals com- 

 posing it saccate, fleshy . . .38. Corycium. 



TeIBE 1. MALAXIDEiE. (GrCn. 1-2.) 



1. LIPARIS, Eich. 



Sepals spreading, free, the lateral equal at base and mostly 

 shorter. Petals narrower than the sepals, linear or filiform. 

 Labellum ascending or erect, slightly adnate to the base of the 

 column, often 2-tubercled above the base, entire. Column 

 elongate, semiterete, incurved, margined at the apex. Anther 

 2-celled. Pollinia 4, collateral. — Lindl. Orch. p. 26; Raw. 

 Thes. t. 109. 



Terrestrial or epiphytic. Leaves concrete at base in a pseudobulb, either 

 membranous and plaited or subcoriaceous with indistinct veins. Flowers 

 rather small, herbaceous, racemose, rarely yellow or white. — 2 or 3 Cape 

 species, dispersed. 



2. POLYSTACHYA, Hook. 



Sepals erect, acute, the lateral larger, connate with the pro- 

 duced base of the column. Petals smaller. Labellum sessile, 

 3-lobed, jointed to the produced base of column, mostly in- 

 flexed. Column semiterete, short. Anther 2-celled. Pol- 

 linia 4, collateral, equal, cohering in pairs. — Lindl. Orch. p. 72 ; 

 Harv. Thes. t. 176, 177, 178, 179. Also Epiphora, Lindl. in 

 Hooh. Comp. Bot. Mag. ii. p. 201. 



Caulescent or pseudobulbous epiphytes. Leaves coriaceous, finely- 

 nerved. Flowers panicled or racemose, yellow, the scape frequently pubes- 

 cent. — 4 Cape species, natives of the Eastern district and Natal. 



Teibe 2. VANDEiE. (Gcu. 3-9.) 



3. CYMBIDIUM, Sw. 



Perianth expanded, the petals and sepals subequal, free. 

 Labellum sessile, free, without spur, concave, sometimes 

 jointed to the base of the column, sometimes shortly connate, 



