NEW OR NOTEWORTHY ORCHIDS 
cellate ovary. Sepals united to about the middle, 1.5 mm. 
long, free portion .75 mm. long, 1 mm. wide, rounded gradu¬ 
ally to the subacute apex, 3-nerved with the nerves promi¬ 
nent on the outer surface, glabrous. Petals hardly 1 mm. 
long, .75 mm. wide at the tip, dilated upward, truncate, 
lightly thickened above the middle, 3-nerved. Labellum .75 
mm. long, about 1 mm. wide, shortly unguiculate, triangular 
in outline above the claw, rounded at the angles, minutely 
papillose-glandular. Disc slightly concave with a transverse 
ridge at base in front of the claw, 3-nerved. Column dilated 
upward. 
The flowers appear to have been yellowish and cleistog- 
amous. Closely allied to Stelis parvula Lindl., but distinct 
in the triangular labellum and very different petals and in 
the bracts of the inflorescence. 
Brenes 48 has been referred to Stelis microtis Reichb. f. 
by Dr. Schlechter, but the specimens I have examined are 
quite distinct from Wendland’s material from which Reich- 
enbach described S. microtis, (cf. Stelis parvula supra.) 
Costa Rica, Los Angeles de San Ramon, A. M. Brenes 
48, July 1921. 1050 meters altitude. (Type in Herb. Ames 
No. 28754.) 
Scaphosepalum Standleyi Ames sp. nov. Herba epi- 
phytica. Rhizoma abbreviatum. Caules secundarii abbre- 
viati, monophylli. Folia anguste elliptica, apice triden- 
ticulata, in petiolum gracilem contracta. Scapus gracilis, 
paucibracteatus. Racemus gracilis. Flores parvi. Sepala 
lateralia usque ad quartam partem apicalem connata, intus 
bicallosa, extus carinata, carinis demum rostriformibus. 
Sepalum dorsale oblongum, ad basim concavum, supra me¬ 
dium incrassato-convexum, extus prope basim valde cari- 
natum. Petala semielliptica, apice inconspicue aristato, bi- 
nervia. Labellum linguiforme, conspicue bicarinatum. Col- 
umna apice ampliato. 
An epiphytic herb with dark red flowers. Roots fibrous, 
spreading, whitish, smooth. Rhizome abbreviated. Second¬ 
ary stems densely caespitose, abbreviated, 5-10 mm. long. 
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