41. 
4la. 
42. 
42a. 
43. 
43a. 
monly conduplicate to excavate ..................0.. 4] 
Lip with a distinct, flat claw without thickened margins 
and with a calliferous or thickened, auriculate to cordate 
base; petals straight with an oblique, but never decurrent 
base; rostellum from a narrowly cuneate base arcuately 
linear-triangular, acuminate ............ 41. Schiedeella 
Lip conduplicate to excavate at base with more or less 
thickened margins; petals sinuous with a decurrent base; 
rostellum without arcuate sides .................0000. 42 
Plants completely invested with diaphanous sheaths; 
rostellum from a broad base variously triangular, obtuse 
BOP ACUININ AOD 25 to ous eh wn as.eyxnsncee 42. Deiregyne 
Plants without diaphanous sheaths; rostellum either linear- 
DINO Cr HOON yc duhaheecivcieeve aeons wb easne ens 43 
Inflorescence few-flowered, secund; flowers horizontal; lip 
gibbose-excavate at base; rostellum filiform ............ 
ey ae ee ee ee eS ee eee ee ee ere 43. Funckiella 
Inflorescence many-flowered, quaquaversal, conical-thyr- 
soid; flowers erect; lip navicular with channelled base; 
rostellum linear-oblong ............ 44. Dichromanthus 
INDEX TO GENERA AND SPECIES 
Acraea Lindl. 
Widgreni Rchb.f. = Brachystele Widgreni (Rchb.f.) Schltr. 
Adnula Raf. 
petiolaris Raf. = Pelexia adnata (Sw.) Spreng. 
Aetheria BI. ex Endl. 
caespitosa Lind]. = Lankesterella caespitosa (Lindl.) Hoehne 
Arethusa L. 
picta Anders. = Sarcoglottis acaulis (J.E.Sm.) Schltr. 
Aristotelea Lour. 
spiralis Lour. = Spiranthes sinensis (Pers.) Ames 
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