BOTANICAL MUSEUM LEAFLETS 
HARVARD UNIVERSITY 
CamspripGr, Massacuusetts, Auaust 15, 1951 VoL. 15, No. 3 
ORCHIDACEAE PERUVIANAE VIII 
BY 
CHARLES SCHWEINFURTH 
THE PRESENT ARTICLE is the eighth in the series pertain- 
ing to Peruvian orchids. Beside amplifications, correc- 
tions and nomenclatural notes, there are descriptions of 
new concepts in the genera Lepanthes, Pleurothallis, 
Liparis and Diothonea. 
The order of genera follows that proposed by Dr. 
Rudolf Schlechter in Notizblatt des Botanischen Gartens 
und Museums Berlin-Dahlem 9 (1926) 563-591. 
Lepanthes longipedicellata C. Schweinfurth sp. 
nov. 
Herba parva, caespitosa, saxicola. Caules tenues, pluri- 
articulati, vaginis hispidis tubulatis cum ostio ovato arc- 
tissime obtecti. Folium unicum, ellipticum vel oblongo- 
ellipticum, plusminusve breviter petiolatum, subtus 
plusminusve purpureum.  Inflorescentiae saepissime 
plures, quam folium longiores, laxe pluriflorae. Flores 
perparvi, cum pedicello longo. Sepala late patentia, 
membranacea. Sepalum dorsale elliptico-ovatum cum 
parte anteriore caudato-acuminata et recurva, trinervium. 
Sepala lateralia anguste triangulari-lanceolata, sensim 
longe acuminata, uninervia, dorso conspicue papillosa. 
Petala transverse bilobata; lobi perangusti. Labellum 
generis, trilobatum; lobi laterales comparate magni, 
dolabriformes; lobus medius minutus, pubescens. 
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