thanks to my good friend Dr. Herman R. Sweet, 
Orchid Herbarium of Oakes Ames, Cambridge, Mass. 
I am ever grateful to Dr. Gunnar Seidenfaden for his 
willingness to share the details of his knowledge of 
Asiatic orchids. My special appreciation is recorded here 
for the important contribution of our secretary, Mrs. 
Ethel Giddings, whose devoted efforts in keeping our 
files up to date, has contributed much to the accuracy 
of data presented in this paper. 
Commentaries on Genera 
Adenoncos Bl., Bijdr. 6: t. 2, June 1825. 
Type: Adenoncos virens Bl. 
Characterized by the short, footless column to which 
the sessile, spurless lip is firmly adnate. Pollinia are dis- 
tinctly 4, free from one another on a prominent stipe. 
Podochilopsis Guillaum. is referable here, and the type 
species, P. dalatensis Guillaum., is identical with Ade- 
noncos vesiculosa Carr. 
Saccolabium adenoncoides Ridl. is closely related to 
A. parviflora Rid. 
Adenoncos adenoncoides (Ridl.) Garay, comb. nov. 
Basionym: Saccolabium adenoncoides Rid]. in Journ. Str. Br. Roy. 
As. Soc. 54: 53, 1909. 
Aerangis Reichb.f. in Flora 48: 190, Apr. 27, 1865. 
Type: Aérangis flabellifolia Rehb. f. 
Characterized by a short column which is somewhat 
dilated toward the base: rostellum simple and elongate. 
Pollinia 2, onasingle, elongate stipe. Sepals and petals 
spreading to reflexed; lip reflexed with the blade much 
shorter than the slender spur. 
Angraecum hyaloides Rehb.f. and Angraecum crypto- 
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