those of D. Powell. Rather than the term ‘‘oblong’’, 
however, as used in the description of the sepals and 
petals of both species,the term ‘‘ovate-lanceolate’’ would 
be more applicable to the acute sepals, and ‘‘elliptic- 
ovate’? a preferable term for the petals. Moreover, the 
lateral angles of the lip are short and obtuse rather than 
‘‘acuminate’’ as credited to D. Powellia. 
The only appreciable differences between the two con- 
cepts seem to be that the ligule on the column of D. 
Brenesii is described and drawn as linear and the flowers 
are noted as yellowish, whereas in J. Powell the ligule 
appears to be rather short and triangular while the sepals 
and petals are noted as yellow-greenish and the lip a 
deep blue. 
Honpuras: Department of Cortes, Santa Cruz de Yojoa. Epi- 
phyte in dense tropical forest. At 2000 feet altitude. Sepals and pet- 
als old ivory, lip white with purple spots. Column white. November 
7, 1933. J.B. Edwards 584. (The leaves in this collection are up to 
13.6 em. long and 7 mm. wide); Epiphyte in open mountain forest. 
At 2000 feet altitude. Sepals, petals and column light green. Lip 
dark blue mottled with white. August 26, 1933. Edwards 516. 
Costa Rica: San Pedro de San Ramon. ‘‘arbres des paturages. 
Alt. 1075 m. XI. 1921. Fleurs jaune’’. 4.M.Brenes 66: San Pedro 
de San Ramon. ‘‘arbres des paturages. Alt. 1050 m. 12-VII-1925. 
Fleurs jaune verdatres (avec le labelle tacheté de pourpre viol. pale?).”’ 
Brenes (141) 1343: San Ignacio de Acosta (cult. at San José) ‘*21- 
VI-1935.”’ Alfredo Brade 283. 
Panama: On hills near Bohio (in vicinity of Panama City). Sea 
level. Sepals and petals yellow-greenish, lip deep blue. C. W. Powell 23. 
[12 ] 
