long and 8.6 mm. wide; those of the type cited as ob- 
long, 7-8 mm. long and 8 mm. wide. Lip transversely 
broad-ovate, about 7.7 mm. long and 10.5 mm. wide; 
that of the type described as transversely oblong, 7 mm. 
long, 5-6 mm. broad. There do not appear to be any 
distinct basal calli in this specimen, while the type is 
noted as having two basal calli adnate to the column. 
Peru: Apurimac, Prov. Andahuaylas, ravine north of Chincheros, 
at 2800 meters altitude, on shrubby hillside in a mixture of clay and 
gravel, February 27, 1939, H. E. Stork & O. B. Horton 10756. 
Epidendrum micranthum Lindley in Hook. 
Journ. Bot. 8 (1841) 88; Fol. Orch. Epidendrum (1853) 
D2 39; No. 28s. 
A mblostoma holochilum Schlechter in Fedde Repert. 
10 (1912) 387; ex Mansfeld in Fedde Repert. Beih. 
58 (1930) t. 40, nr. 158. 
In the description as well as in the floral analysis drawn 
on the sheet of typical H’pidendrum micranthum, the lip 
is oblong-quadrate or subquadrate-ovate and naked on 
the disc. Several Peruvian collections which I have seen 
recently are obviously inseparable from this species, but 
have lips which vary from oblong-cordate to rotundate- 
cordate and are more or less irregularly lobulate, especial- 
ly in the lower part. 
It is evident that the concept described and figured as 
Amblostoma holochilum should not be referred to that 
genus which is characterized by having subglobose pol- 
linia and a deeply trifid lip. The strongly flattened pol- 
linia place it unmistakably in Epidendrum. 
The general aspect and closely similar form and_ pro- 
portions of A mblostoma holochilum show that this concept 
should be included in Hpidendrum micranthum. Indeed, 
the only noteworthy discrepancies are that the apex of 
the hp is hghtly retuse and the dise bears a trilobulate 
eva 
