A.Steyermark 39868 (Herb. Ames, Herb. Field Mus.). (It is assumed 
that this plant was obtained in nature from some part of Guatemala). 
Mormodes histrio Linden & Reichenbach filius in 
Hamb. Gartenz. 15 (1859) 54. 
Mormodes lineatum Lindley in Bot. Reg. 28 (1842) 
t. 43 (only as to plate, not as to description). 
Mexico—Chiapas : Soconusco system, above Huixtla, on decaying 
tree trunk, open space in humid forest, sepals and petals claret brown, 
lip brown-vinaceous, underneath olive-green, plant 1 foot high, 18 
internodes, about 1000 meters altitude, O. Nagel 4374 (Herb. Ames) ; 
Mt. Ovando, at 1250-2370 meters altitude, July 1938, E. Matuda 
2578 (Herb. Univ. Michigan). 
GUATEMALA~~—Sacatepéquez: On log, sepals maroon, lip green and 
white, large elongate bulbs, Barranco Hondo, lower slopes of Volcan 
de Fuego, altitude about 1800 meters, Dec. 16, 1938, P.C. Standley 
60258 (Herb. Ames, Herb. Field Mus.). 
Honpuras—Comayagua: Siguatepeque, epiphyte, open mountain 
forest, petals and sepals wine color, lip yellow, column pale green, 
3700 feet altitude, Jan. 30, 1933, J.B. Edwards 359 (Herb. Ames); 
Siguatepeque, epiphyte, open pine forest, sepals light green with 
heavy dark purple stripes and dots, petals light green with fewer dark 
purple stripes and dots, lip yellow with few purple dots and covered 
with minute yellow hairs, column yellow, 3700 feet altitude, Oct. 9, 
1932, J. B. Edwards 281 (Herb. Ames). 
Ill, EVIDENCES OF FLORAL POLYMORPHISM 
IN THE GENUS MORMODES 
The flowers in the genus Mormodes have long been 
known to be exceedingly variable in color and size. Re- 
cently two collections of M. histrio were noted which 
much more definitely establish the existence of floral 
polymorphism in the genus. A collection from Honduras 
(Hdwards 359) has flowers on the same raceme which 
differ in size, texture, shape and the presence or absence 
of hairs on the lip. The smallest flowers are somewhat 
fleshy and have densely pilose lips. ‘The medium-sized 
flowers are subcoriaceous and have smooth lips. (The lip 
illustrated in figure 8 is taken from a flower somewhat 
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