smaller flowers (sepals 8 mm. long), broader (ovate- 
oblong) dorsal sepal and obtuse (not acute nor acumi- 
nate) lip. 
This species occurs in Peru (Cuzco and Husnuco (type 
of EH. macrodonax) ), Venezuela (type of 1. frigidum) 
and perhaps Colombia (Pasto). 
Epidendrum frigidum Linden ex Lindley var. 
stenophyton (Scih/tr.) C. Schweinfurth var. nov. 
Epidendrum stenophyton Schlechter in Fedde Repert. 
Beih. 9 (1921) 98; ex Mansfeld in Fedde Repert. Beih. 
57 (1929) t. 121, nr. 476. 
This concept differs from EL. frigidum only in outward 
appearance. Its stems are either simple (as in J7. frigi- 
dum) or branched and they are much more slender, hav- 
ing a diameter of 4 mm. or less across the leaf-sheaths, 
whereas those of H. frigidum are about 10 mm. across. 
The leaf-sheaths are finely verruculose in the variety, 
whereas they appear to be merely rugulose in 11. frigt- 
dum. The leaves of var. stenophyton are small, being 5.6 
cm. or less long and 8 mm. or less wide, whereas they are 
much larger in 27. frigidum. The inflorescences of var. 
stenophyton are always abbreviated and usually (but not 
always) racemose, whereas in J7. frigidum they are in- 
variably paniculate with commonly elongate branches. 
The flowers of this concept are slightly smaller than in 
E.. frigidum and they vary from greenish white (some- 
times with a faint pink tinge) to pale yellow, whereas 
those of H. frigidum are pale rose-colored. 
This variety is apparently well distributed in Peru, 
being found in Amazonas (type of 11. stenophyton), Cuzco 
and Hudnuco. It seems quite likely that the Jameson 
collection from Pasto (Colombia) cited as a form of £1. 
Srig oidum by Lindley (Fol. Orch. Epidendrum p. 89) as 
‘‘weak and racemose, not panicled,’’ should be referred 
to this variety. 
