typical P.marginata show them only semiconnate. This 
character, however, is known to be extremely variable 
in the genus Pleurothallis. 
Pleurothallis pergracilis, as shown by specimens 
compared with the type of that species, is identical with 
P. choconiana. 
The type description of P. panamensis claims several 
characters that differentiate it from P.marginata such as 
the smaller size of the leaves, and the narrower petals and 
lip. However, the drawing of the type specimen shows 
a plant surely not specifically separable from P. margin- 
ata, and the alleged floral characters of P. panamensis 
are present in otherwise normal P. marginata. 
Pleurothallis marginata is thus seen to be widely 
distributed through Middle America, extending from 
Mexico to Panama. 
[ +4 ] 
