Cuzco: Prov. of Convencién, ‘‘alturas de Pintobamba,’’ at 2700 
meters altitude, epiphyte or terrestrial in humus in wet forest, March 
4, 1943, C. Vargas 3264 (Tyre in Herb. Ames No. 65057). 
Liparis ramosa Poepp. & Endl. var. Rusbyi 
(Rolfe) C. Schweinfurth comb. nov. 
Liparis Rusby: Rolfe in Bull. N.Y. Bot. Gard. 4 
(1907) 454. 
Subsequent examination of Bolivian and Peruvian 
specimens referable to Liparis Rusby: has convinced me 
that it differs from L. ramosa, represented by numerous 
Peruvian collections, by only a few constant characters. 
While the plant described as L. Rusbyi appears to be 
somewhat larger throughout, the most notable difference 
is in its larger flowers. The sepals of L. ramosa are about 
8 mm. or less long, while those of L. Rusbyi are 10-11 
mm. long. A more fundamental discrepancy, however, 
lies in the lip. In ZL. ramosa this organ is more or less 
subquadrate-obovate with a rounded to subcordate lower 
portion above the acute base and is about 7-9 mm. in 
length. In L. Rusbyi the lip is obovate or oblong-obovate 
to oblong-oval and is about 11-13.6 mm. long. 
It appears, therefore, that it is advisable to recognize 
the plant with the relatively large flowers that have a lip 
with a more or less cuneate base (described as Liparis 
Rusby?) as a well-marked variety of the older L. ramosa. 
Hexisea bidentata Lindley var. imbricata (Lind. ) 
C. Schweinfurth comb. nov. 
Diothonea imbricata Lindley Sert. Orch. (1841) t. 40, 
fig. 1. 
Epidendrum oppositifolium A. Rich. & Gal. in Ann. 
Sci. Nat. ser. 8, 3 (1845) 21, no. 46. 
Diothonaea oppositifolia Reichenbach filius in Linnaea 
22 (1849) 842. 
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