the color as ‘‘white’’, ‘‘orange-yellow’’, ‘‘brick-red’’, 
‘‘orange’’, ‘‘rose-purple with 2 dark stains on the lip’’, 
‘‘vermillion-orange’’, ‘‘red-violet’’, ‘‘purple’’, ‘ ‘flame 
searlet’’, ‘‘bright red’’, ‘‘cerise pink’’, ‘‘violet’’ and 
“‘lilae’’. 
This is the most common and widespread Jsochi/us. 
It is found from near sea level up to 3900 meters altitude 
in cloud forests in Mexico, throughout Central America 
and the West Indies, and in the northern half of South 
America. It occurs as a terrestrial, on rocks and logs, 
or on various species of trees, mainly in pine-oak forests. 
Cogniaux proposed I. pauciflorus based primarily on 
a one- to few-flowered plant in contrast to his so-called 
numerous-flowered J. imearis. An examination of Jac- 
quin’s figure of H/pidendrum lineare, upon which Isochi- 
lus linearis is based, shows a three-flowered plant. This 
type of few-flowered plant illustrated by Jacquin is the 
common form found in the West Indies. It is apparent 
that Cogniaux described as a new species the typical 
form of J. linearis and considered as I. inearis a more 
uncommon form of the species. ‘The secondary charac- 
ters given for each of Cogniaux’ segregates have been 
found to intergrade too freely to be of specific value. 
A study of the original description and an examination 
of Schlechter’s illustration of a flower of I. peruvianus 
shows that it is referable to J. inearis. The vegetative 
description and floral analysis compare favorably with 
typical J. linearis. 
An examination of a floral analysis of I. brasiliensis 
shows that the flowers of this concept are not unlike those 
of some of the forms of I./inearis. Apparently no formal 
description was ever written by Schlechter for J.brasil- 
ensis. 
[6] 
