very densely villous-hirsute. Bracts linear, very hairy, 
38-5 mm. long. Flower 2.5-8 cm. long, 1-1.3 em. wide 
at the tip when expanded. Calyx 5-dentate, cup-shaped, 
the cup 5-6 mm. long, densely white-hirsute, the hairs 
up to 1 mm. long, the teeth linear, 5-6 mm. long. Co- 
rolla purple, narrowly infundibuliform, 5-lobate with 
rounded, subequal lobes, 2-lipped, densely hirsute ex- 
ternally and internally at the insertion of the stamens. 
Fertile stamens four, glabrous, the shorter two about 
1.1-1.5 em. long, the longer two 1.7—1.9 cm. long; stam- 
inodium linear-clavate, about 8mm. long, not glandular. 
Style elongate, glabrous, 2.2 cm. long; stigma shallowly 
bifid. Ovary subglobose, about 2-8 mm. in diameter. 
Seeds very numerous, small, scrobiculate. Flowering sea- 
son: June and July. 
SPECIMENS EXAMINED: 
Mexico: Oaxaca, District of Choapam, Santa Maria Yahuivé, long. 
95°50’, lat. 17°19’, alt. 1200 m., May 15, 1939, Schultes & Reko 918; 
District of Choapam, between San Juan Teotalcingo and Santiago 
Choapam, long. 95°57’, lat. 17°18’, alt. 1800 m., June 1, 1939, 
Schultes 566; ibid, alt. 1400 m., June 1, 1939, Schultes 566a; Dis- 
trict of Choapam, between Santiago Choapam and San Juan Comal- 
tepec, long. 95°58’, lat. 17°24’, alt. 1000 m., June 3, 1939, Schultes 
Oils 
This striking endemic is very local in occurrence. It 
has been collected only in the mountains of the Districts 
of Villa Alta and Choapam in the northeastern part of 
the state of Oaxaca. Galeotti (Galeotti 1040) collected 
it a century ago, “‘in rupibus montium orientalium Oax- 
acae, alt. 2,500 ped’’. It was found shortly thereafter 
by Jiirgensen (Jiirgensen 642, 842, 936) on San Pedro 
Nolasco, a mountain near the boundary of the Districts 
of Villa Alta and Ixtlan. These collections were cited 
by Hemsley in the original description, but they are at 
present unavailable for examination. However, Hemsley’s 
excellent plate of Uroskinnera hirtiflora (in Godman & 
[71 ] 
