1002 BENGAL PLANTS. 
Lip jointed to the foot ............... Ornitharium. 
Lip not jointed to the foot............-.-++ Firides. 
+ Column with little or no foot; lip not jointed :— 
[p- 1001 
] 
Spur with neither calli nor septum within :— 
Spur compressed laterally, me pabesoetts at 
the mouth ; side-lobes non tylis. 
Spur not compressed, cae mcsoee, cylindric, 
or wide, funnel-shaped, or short, saccate, 
rely (one ee reduced t we 
swelling, and then the leaves flat :— 
Side-lobes of lip usually large; spur wide, 
poe gute glabrous at the mouth ; 
side-lobes of lip small then the spur also 
pakolnclth flowers large ; caudicle of pol- 
linia very broad ......csseeeeeeeeeeeee si da. 
eae lobes of “ip small or non out 
naked or fimbriate; spur narrow, “enna 
r wide = flowers small; 
caudicle very narrow.......... Sacc solabium. 
gt one par sally or paces occluded by 
"She occluded by a dorsal scale or by calli on 
the anterior and posterior walls, without 
a septum Cleisostoma. 
Spur within partially occluded by calli and 
oe by a vertical, antero-posterior septum 
o two lateral chambers ........- Sarcanthus. 
©Anther wie npr 4 in 2 pairs, with 2 very long caudicles 
tapering toa minute gland ; epiphytic herbs [p. eon Camarotis- 
{Pollinia powdery, ara or in smal] masses :—{p. 9 
nther terminal ; pollinia 2 or 4, cohering by their ee without - 
either gland or caudicle :— 
Large, leafy, epiphytes with coriaceous leaves .......--++ Vanilla. 
mall, terrestrial, erect herbs :— 
Saprophytic, prree Peg with sepals and gor united into 
a 5-toothed, 2-labiate tube.............00cceseseeeees Didymo lexis. 
Green herbs, with aba and petals free; leaf solitary after 
the flower from a separate tuber, rarely contemporaneous a? 
from the same tuber _..Pogonia- 
Anther posticous, vertical but we ; pollinia 2, or 4 in twe 
pairs, attached occasionally directly but ey | by one or by tw? 
caudicles to a solitary gland; terrestrial herbs : 
