conspicuously longer than the column. Except for this 
difference the specimens of the two sets are similar and 
surely represent variants of a single species. A third set 
of specimens collected by A. M. Brenes at San Ramon 
agrees in detail with Lankester’s 1010. 
Costa Rica, La Estrella de Cartago. At 6,000 feet altitude. 
Flowers up to fifty ; sepals frontally pale buffy vinaceous, white-hairy, 
externally flushed with dusky purple on the central vein and neay the 
margin; petals, lip and column pale oil-green. July 24, 1925. C.H. 
Lankester 1010 (Tyrer in Herb. Ames No. 31194): Cachi. At 4,000 
feet altitude. Flowers buffy. September 27, 1925. C. H. Lankester 
1051: San Ramon. Epiphyte, 1.5-2.5 dm. tall. At 975 meters alti- 
tude. October 10, 1922. A.M. Brenes (28) 323. 
Stelis latipetala Ames sp. nov. 
Herba epiphytica. Caules monophylli, vaginis tubu- 
laribus vestiti. Folium coriaceum, ligulatum, apice bilo- 
bulatum. Racemi multiflori, erecti. Flores pusilli. Sepala 
orbiculari-ovata, trinervia, intus glanduloso-papillosa. Pe- 
tala flabellata, uninervia. Labellum infra medium con- 
strictum, superne plus minusve cordatum, callo glandu- 
loso-papilloso prope basim instructum. Columna apice 
dilatata. 
Epiphytic herb up to 2.1 dm. tall. Roots coarsely 
fibrous, about 2 mm. in diameter, whitish. Secondary 
stems caespitose, monophyllous, up to 7 cm. long, con- 
cealed by elongated tubular sheaths. Leaf 10-18.5 em, 
long, up to 1 em. wide in dried specimens (probably 
wider when alive), coriaceous, ligulate, bilobed at the 
apex. Peduncles 1 or 2, erect, with several infundibuli- 
form bracts below the raceme, including the raceme 13-15 
cm. long. Raceme about 7 em. long, less than 8 mm. in 
diameter, bearing about seventy flowers. Sepals forming 
a tubular base; the lateral sepals about 1.5 mm. long, 
up to 2 mm. wide, orbicular-ovate, 8-nerved, minutely 
glandular-papillose on the inner surface. Dorsal sepal 
[53 | 
