in P. asperilinguis. Although the drawing of P. asper- 
linguis from the Reichenbach Herbarium (in the Ames 
Herbarium) does not show clearly the dimensions of the 
flowers, they appear to be but little smaller than those 
of P. aurea. The description of P. aurea mentions the 
glandular-scabrous or pubescent inner surface of the 
sepals, a character which appears in all of the collections 
that have the 3-nerved petals and the smaller flowers. 
Another character cited in the description of P. asper- 
iinguis (and the one that undoubtedly furnished the spe- 
cific name) is the roughness caused by the acute papillae 
near the apex of the lip. This character is to be observed 
to a more or less degree in all of these collections having 
3-nerved petals. 
The type description of P. asperilinguis mentions that 
the lip is 5-nerved, a characterization which seems highly 
dubious. 
Pleurothallis aurea occurs in Venezuela (where the 
type was collected), Ecuador and Peru (type of P. as- 
perilinguts). 
Pleurothallis secunda Poepp. & Endl. var. long- 
iracema (C. Schweinf.) C. Schweinfurth comb. nov. 
Pleurothallis Linden Lindl. var. longiracema C. 
Schweinfurth in Bot. Mus. Leafl. Harvard Univ. 16 
(1953) 53. 
It has recently been called to my attention by Mr. 
Leshe A. Garay of Toronto, Canada, that the concept 
Pleurothallis Lindeniw Uindl., which was described in 
Ann. & Mag. Nat. Hist. 12 (1843) 397, was considered 
by Reichenbach f. (in Bonpl. 8 (1855) 72) to be referable 
to the earlier P. secunda Poepp. & Endl., which appeared 
in Nov. Gen. ac Sp. 1 (1886) 49, t. 85. 
Accordingly, it becomes necessary to make the new 
combination cited above which was originally attributed 
to Pleurothallis Lindenii. 
[41] 
