This genus is a synonym of Pteroceras Hassk. 
Pennilabium J.J.Sm. in Bull. Jard. Bot. Buitenz. ser. 
2, 14: 48, Apr. 1914. 
Lectotype: Saccolabium Angraecum Ridl. 
Characterized by the short, footless column which is 
more or less compressed dorsally. Rostellum elongate, 
prominent, bifid. Pollinia 2, entire, on long, slender, 
often spathulate stipe. Stigma large, transverse. Lip 
with a distinct spur without callosities inside. In the 
construction of the lip there are two types: 1, lateral 
lobes well-developed and the midlobe reduced to a small 
fleshy lobe; 2, lateral lobes much reduced, may be rep- 
resented only by small auricle-like lobes; midlobe very 
prominent, fleshy and solid. 
Inflorescence elongate, racemose, bifarious, with some- 
what thickened and complanate rachis. 
Pennilabium confusum (Ames) Garay, comb. nov. 
Basionym: Saccolabium confusum Ames in Phil. Journ, Sci. Bot. 8: 
435, 1913. 
Pennilabium fimbriatum (Ridl.) Garay, comb. nov. 
Basionym: Saccolabium fimbriatum Rid}. in Journ. Str. Br. Roy. As. 
Soc. 54: 52, 1909. 
Pennilabium luzonense (Ames) Garay, comb. nov. 
Basionym: Saccolabium luzonense Ames in Phil. Journ. Sci. Bot. 8: 
435, 1913. 
Podochilopsis Guillaum. in Bull. Mus. Nat. Hist. 
Paris, ser. 2, 84: 478, 1962. 
Type: Podochilopsis dalatensis Guillaum. 
This is a synonym of Adenoncos BI. 
Pomatocalpa Breda, Gen. et Sp. Orch. et Ascl. Fase. 
8: t. 15, Aug. 15, 1829. 
Type: Pomatocalpa spicatum Breda. 
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