tic to oval, subacute to rounded at the apex, about 14— 
16 mm. long and 7-10 mm. wide. Lip adnate to the 
column up to its apex, suborbicular-ovate in outline, 
simple to lightly but distinctly trilobed at the apex, cor- 
date at base, about 12-14 mm. long in the middle (from 
the cordate base to the rounded or triangular-acute apex) 
and 15-17 mm. wide; disc bicallose at base, with the 
central longitudinal portion thickened. Column very 
short and stout. 
Peru: Cuzco, Prov. of Urubamba, “‘Kil. 97-108, F.C. C. S. A.’’ at 
2200 meters altitude, on rocky slope, May 16, 1943, C. Vargas 3408 
(Tyrer in Herb. Ames No. 65062); Machu Picchu, at 2040 meters 
altitude, rocky slope, January 9, 1946, C. Vargas 5541. 
Epidendrum longirepens (C. Schweinf.) C. 
Schweinfurth comb. nov. 
Epidendrum Schlechterianum Ames var. longirepens 
C. Schweinfurth in Bot. Mus. Leafl. Harvard Univ. 
11 (1943) 115. 
Renewed study of the plant which I described as H/pi- 
dendrum Schlechterianum var. longirepens has convinced 
me that this concept is worthy of specific rank. While 
it certainly is allied to #. Schlechterianum, this entity is 
widely divergent by reason of its long creeping rhizome, 
its very small leaves, its petals which are nearly or quite 
as broad as the sepals (not markedly narrower) and its 
lip which is rounded or only slightly (not deeply) cordate 
at the base. 
Epidendrum pachychilum A7iénzlin in Fedde 
Repert. 1 (1905) 184. 
Epidendrum aquaticoides C. Schweinf. var. pusillum 
C. Schweinfurth in Bot. Mus. Leafl. Harvard Univ. 11 
(1943) 82. 
Recent study of material referable to Hpidendrum 
pachychilum shows that this concept differs in certain re- 
spects from the original description. 
[12] 
