CXXII. ORCHIDACER. 859 
Back sepal spurless, forming with the pe- 
tals a galea. 
Lateral sepals spreading, petaloid, saccate 
orspurred. . . DY hee Ge SON DISBUETSS 
Lateral sepals not saccate or ‘spurred. 
Labellum clawed, lunate; column 
horseshoe-like. . . . . . . . 35, CERATANDRA. 
Labellum sessile. 
Petals unequally-lobed ; anther erect 36. OMMATODIUM. 
Petals undivided ; anther resupinate. 
Sepals petaloid; galea wide- 
mouthed: apy: 7:72 137. Prrryeopium. 
Sepals membranous ; galea with a 
narrow mouth, the petals com- 
posing it saccate, fleshy . . . 38. CorycruM. 
Trirpe 1. Maraxtpem. (Gen. 1-2.) 
1. LIPARIS, Rich. 
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. Pollnia 4, collateral— Lindl. Orch. p. 26; Harv. 
Thes. t. 109. 
Terrestrial or epiphytic. Leaves concrete at base in a pseudobulhb, 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- eelled: Pol- 
linia 4, collateral, equal, cohering i in pairs.— Lindl. Orch. p. 72 ; 
Harv. "Thes. a 176, UPA LFS 179 . Also Epiphora, Lindl. oe 
Hook. Comp. Bot. ‘Mag. tig. 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, 
Tribe 2. Vannes. (Gen. 3-9.) 
3. CYMBIDIUM, Svw. 
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, 
