Rican collection (Standley 33741) has a lip which is quite 
similar to that of the South American O. heteranthum. 
One Peruvian collection of O. heteranthum (Vargas 
2531) varies from the usual form in lacking the separate 
calli on the lateral (or basal) lobes of the lip and in hav- 
ing the apex of the column-wings narrowed to an acu- 
minate point rather than having the typical more or less 
broad apex. Another Peruvian collection (Schunke s.n., 
Herb. Field Mus. No. 571665) has a row of detached 
calli extending onto the lateral lobes on each side of the 
middle callus. 
Other differences noted in the various collections ap- 
pear in the vegetative size, in the oblong-ovoid to cylin- 
dric pseudobulbs, and in the leaves which vary from 
linear-oblong to elliptic. 
The other concepts cited above have already been re- 
duced to the synonymy of O. bryolophotum. 
Oncidium incarum (Ariinzl.) C. Schweinfurth 
comb, nov. 
Cyrtochilum Incarum Krinzlin in Engler Pflanzenr. 
IV. 50, pt. 2 (Heft 80) (1922) 58. 
Since it seems unwise to regard the concept Cyrtochi- 
lum as distinct from the large and variable genus Oncid- 
ium, the above transfer is necessary. 
Oncidium macranthum Lindley var. hastiferum 
(Reichb.f. & Warse.) C. Schweinfurth comb. nov. 
Oncidium hastiferum Reichenbach filius & Warscewicz 
in Bonpl. 2 (1854) 102; Reichenbach filius in Walp. 
Ann. 6 (1863) 708. 
Cyrtochilum hastiferum Krinzlin in Engler Pflanzenr. 
IV. 50, pt. 2 (Heft 80) (1922) 34. 
Judging by the descriptions of Oncidium hastiferum 
and by a drawing in the Reichenbach Herbarium, made 
from cultivated material, it appears preferable to con- 
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