196 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
ovate, scarcely 4 mm. long, with rather more prominent dorsal and 
intermediate ribs and narrower lateral wings than in the other species; 
oil tubes 2 to 4 on the commissural side. 
Type locality, ‘* margins of Santa Fe Creek |New Mexico], in fertile 
soil;” collected by fendler, no. 272, June—July, L847; type in Herh, 
Gray. 
In the Rocky Mountains from New Mexico to Wyoming. 
Specimens examined: 
New Mexico: Hermits Peak, Snow; near Santa Fe (at type locality), A. A. & EF. 
Gertrude Heller 3801, July 2, 1897. 
CoLtorapo: Twin Lakes, Wolf 728, July, 1873; mountains near timber line, Alice 
Kastwood, July 23, 1890; Steamboat Springs, altitude 2,100 meters, Crandall, 
July 26, 1891; Gypsum Creek Canyon, altitude 2,400 meters, Crandall, 
August 7, 1894; Telluride, altitude 8,000 meters, Tireedy 207, August 18, 1894; 
_ Cameron Pass, altitude 3,000 meters, Baker, July 15, 1896; Bob Creek, 
southern Colorado, altitude 5,150 meters, Baker, Marle & Tracy 851, July 1, 
1898. 
Wromrinc: Centennial Hills, Nelson 2697, August 20, 1896; Battle Lake, Carbon 
County, Nelson 4183, August 16, 1897. 
5. Oxypolis occidentalis (. & R. sp. noy. 
Resembling O. fendler7, but taller and stouter; leaves 6 to 12- 
foliolate; leaflets usually larger; umbels with more numerous and more 
widely spreading equal rays, and involucels of linear bractlets; fruit 
larger (5 mm. long). 
Type locality, in springy meadows west of Crater Lake, Oregon, 
altitude 1,870 meters; collected by /. B. Leberg, no. 4413, in 1899; 
type in U. 5S, Nat. Herb. 
Oregon. 
Specimens examimed: 
OrEGON: Type specimens as cited under type locality; same station, Coville & 
Leiberg 417, August 15, 1896. 
This species is very distinct geographically from its nearest ally, O. fendleri. 
57. LEPTOTAENIA Nutt. in Torr, & Gray, FL 1: 629. 1840. 
Calyx teeth obsolete or sometimes evident. Fruit flattened dorsally, 
oblong-elliptical, glabrous. Carpel with dorsal and intermediate ribs 
filiform or obscure; lateral wings very thick and corky, with large 
groups of thick-walled strengthening cells; commissural face with a 
prominent central longitudinal ridge left after separation from the 
‘arpophore. Stylopodium wanting. Oil tubes 8 to 6 in the intervals, 
4 to 6 on the commissural side, mostly small, sometimes obsolete. 
Seed very flat, with plane or slightly concave face. 
Usually tall and stout glabrous nearly acaulescent perennials, with 
thick often very large fusiform roots, usually large pinnately decom- 
pound leaves, involucre of few bracts or none, involucels of numerous 
small bractlets, and yellow or purple flowers. 
