basal portion provided on each side with a slender seti- 
form lobule, then contracted into a linear-oblong, sharply 
bidentate lamina which is erose-fimbriate and muriculate 
through the center. Column slender, clavate above, about 
half as long as the lip. 
This description is mostly based on the Peruvian col- 
lection cited below which differs in some respects from 
Rolfe’s Ecuadorian material. The dorsal sepal and petals 
are slightly shorter. The sepals and petals are noted as 
translucent white lined with red or maroon, the lateral 
sepals being yellow thickly spotted with maroon or dark 
red. Since we consider that the concept Restrepia HBK. 
is referable to the variable genus Pleurothallis R.Br., I 
have made the above transfer. A new specific epithet is 
necessary, since the name Pleurothallis ecuadorensis was 
given to another species by Schlechter in 1915. 
Huanuco: Mufia, at about 2100 meters altitude, in dense forest, 
J. Francis Macbride 4018. 
Pleurothallis floribunda Poeppig & Endlicher 
Nov. Gen. ac Sp. 1 (1886) 48, t. 84. 
Pleurothallis macrophylla HBK. sensu Lindley in Bot. 
Reg. 28 (1842) Misc. p. 74, no. 44; Fol. Orch. Pleuro- 
thallis (1859) p. 8, no. 2. 
Pleurothallis macrophylla HBK. sensu Cogniaux in 
Martius FI. Bras. 8, pt. 4 (1896) 396. 
Several authors of note, especially John Lindley and 
Alfred Cogniaux, have treated Pleurothallis floribunda 
Poepp. & Endl. as referable to the older P. macro- 
phylla HBK. However, a careful consideration of the 
available evidence, including a photograph of P. macro- 
phylla from the Muséum d’ Histoire Naturelle at Paris, 
has convinced me that the two concepts are amply dis- 
tinct. The differences are shown in the following table. 
[ 51 | 
