near the apex, 3-nerved, slightly oblique. Petals sub- 
quadrate-rhombic, about 3.5 em. long and 2.9 em. wide 
in the middle, abruptly acute, cuneate toward the base, 
15-nerved near the middle, with very obscure reticula- 
tions, setose near the base inside, very minutely papillose- 
cilolate especially toward the base. Lip transversely 
rhombic-ovate, acute with a short dorsal keel, about 2.6 
em. long and 3.4 em. wide below the middle, 23-nerved 
below the middle, minutely papillose below the middle, 
very minutely cellular-ciliolate especially near the base. 
Column very short and broad, protuberant on the dise of 
the lip, finely short-pubescent in front, long-setose in the 
rear (agglutinated in this specimen). Pollinia four, in two 
pairs, complanate-obovoid at the broadened apex of a 
long linear stipe. Viscid disc linear-oblong, circinnate. 
Telipogon ampliforus has apparently no near allies in 
Central America, but there are several similar species in 
South America. It differs from the Ecuadorian 7". aureus 
Lindl. in having broader leaves, dissimilar transversely 
ovate lip, and many more nerves in the petals and lip. 
It varies from the Colombian 7'duwbius Reichb.f. (which 
was described from a flower only) in having a larger 
flower with broader petals and lip, and purplish (not 
white) hairs on the column. It diverges from the Peru- 
vian 7’. Papilio Reichb.f. (apparently a very nearly allied 
species) in having considerably larger flowers and differ- 
ently proportioned lip. 
Costa Rica: Province of San José, northeast of El Copey. In 
dense oak and bamboo forest near Laguna de la Escuadra. At 2000- 
2200 meters altitude. On tree. Flowers pale yellow with dark purple 
veins. December 16, 1925. Paul C. Standley 42021 (Tyrer in U.S. 
Nat. Herb. No. 1309567). 
[ 85 | 
