ORGHIDACEAE QUAEDAM AMERICANAE 
long, 2 mm. wide above the middle, sparsely glandular on 
the exterior surface, margins involute. Mentum about 7 mm. 
long, glandular without, adnate to the ovary, the conical tip 
free. Dorsal sepal about 1.5 cm. long, 4.5 mm. wide above 
the middle, lanceolate, acute, strongly concave at the base, 
arching forward, adnate to the petals, glandular-pubescent 
on the outer surface. Petals 1.4 cm. long, about 1.5 mm. 
wide above the middle, linear-spatulate from a slender linear- 
oblong base, acute, smooth, membranaceous, with the up¬ 
per sepal forming a narrow hood above the gynostemium. 
Labellum, — including the basal portion concealed by the 
mentum, — 1.5 cm. long, the upper half below the expanded 
apex adherent to the elongated gynostemium, narrowed 
above the dilated biauriculate base then gradually broad¬ 
ening, 4 mm. wide (when free and spread out) in front of 
the suborbicular lamina in which it terminates, minutely 
lobulate on each side or simply constricted; apical lamina 
2.5 mm. long, 2.5 mm. wide; basal auricles retrorse, some¬ 
what thickened. Disc of the labellum glandular-hairy in 
front of the auricles. Gynostemium about 1 cm. long, very 
slender, dilated above into an orbicular body which is ter¬ 
minated by the linear-oblong rostellum; rostellum about 
1 mm. long, minutely trilobulate at the apex. 
This species appears to be most closely allied with 
Pelexia longipetiolata (Reichb. f.) Schltr., from which it 
differs in the outline of the leaves, in the shorter petioles 
and in the trilobulate or denticulate apex of the rostellum. 
Honduras, San Pedro Sula, Carl Thieme 785, May 26, 
1889. Roadside in forest. (Type in U. S. Nat. Herb. No. 
814643.) 
Pelexia subaequalis Ames sp. nov. Caulis subnullus. 
Folium longe petiolatum, ellipticum, acutum, chartaceum 
in sicco, quam scapus vix brevius. Scapus erectus, brac- 
teosus. Racemus laxus. Bracteae inflorescentiae lineares. 
Sepala lateralia linearia, acuta, glanduloso-pubescentia. 
Sepalum dorsale anguste ellipticum. Petala lineari-lanceo- 
lata, ad sepalum dorsale affixa. Labellum elongato-pandur- 
iforme, basi sagittatum, intus basim supra dense glanduloso- 
