Sepala petalaque libera, patentia, nisi petala minora. 
Labellum carnosum, calcaratum, 3-lobum, lobis laterali- 
bus erectis columna parallelis, lobo intermedio recurvo, 
in medio articulato, apice setaceo-bifido. Columna hu- 
milis, apoda, juxta stigma auriculis valde carnosis ornata. 
Stigma suborbiculare. Rostellum aciculare, bifidum, 
arrectum. Pollinia 2, indivisa, subfaleato-obpyriformia, 
angulata, stipiti late obovati affixa; glandula linearis, 
maxima. Anthera bilocularis obscure septata. 
Herbae epiphyticae ; caulibus abbreviatis; foliis carno- 
sis, paucis, distichis. Inflorescentiis gracilibus, leviter 
arcuatis interdum pendulis, racemosis, multifloris, dis- 
tincte pedunculatis. Floribus carnosis, minutis. 
The peculiar, auriculate column and the angular, en- 
tire pollinia differentiates this new genus from Cleisosto- 
ma B)., Schoenorchis Bl. and Malleola J.J.Sm. & Schltr. 
Megalotus bifidus (Lindl.) Garay, comb. nov. 
Basionym: Saccolabium bifidum Lindl. in Bot. Reg. 24: Mise. p. 3, 
1838, 
Syn.: Gastrochilus bjfidus (Lindl. ) O.Ktze., Rev. Gen. Pl. 2: 661, 
1891. 
Sarcanthus byfidus (Lind]l.) Ames, Orchid. 5: 245, 1915. 
Micropera Lindl. in Bot. Reg. 18: sub t. 1522. Sept. 
1, 1882. 
Type: Aerides pallida Roxb. 
Characterized by a short, footless column which 
widens toward the apex and terminates in a prominent 
rostellum. Pollinia 2, each split in equal halves on long 
slender stipe. Lip calceolate, porrect, with the basally 
connate latereal sepals dorsally adnate to it. 
The fact that the characters of the genera Camarotis 
Lindl. and Micropera Lindl. are identical has already 
been recognized by Lindley in 1859 (cf. Journ. Linn. 
Soc. 3: 37). Since Micropera antedates Camarotis by 
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