COULTER AND ROSE—-NORTH AMERICAN UMBELLIFERAE. 221 
5 to 10-rayed, with involucels of scarious-margined linear-lanceolate 
bractlets sometimes toothed and usually distinct; rays 1 to 5 em. long; 
pedicels pubescent, 4 to LO mm. long; flowers white, with pubescent 
ovaries; fruit round to ovate, somewhat pubescent, 6 to 10 mm. long, 
4+ to 8 mm. broad, with wings almost as broad as body, and evident 
dorsal and intermediate ribs; oil tubes 3 or 4 in the intervals, 4 to 6 on 
the commissural side. 
Type locality, Unionville, Nevada, altitude 1,500 meters; collected 
by Watson, no, 469, June, 1868; type in U. S. Nat. Herb. 
From the mountains of southeastern Oregon and eastern California 
to Nevada and Arizona. 
Specimens examined: 
OrEGoN: Near Button Springs, Lake County, altitude 1,470 meters, Letberg 361, 
June 30, 1894; near Harpers Ranch, Malheur Divide, altitude 240 to 570 
meters, Leiberg 2107, 2145, 2205, May 22-June 5, 1896. 
Cauirornia: ‘Upper Sacramento,’? Parkinson; Sierra Nevada, Lenunon, in 1875; 
near Truckee, Nevada County, Sonne, May-July, 1886, 1887, and 1895, 
Nevapa: Near Virginia City, Bloomer, March-April, 1863-64; type specimens as 
cited under type locality; Carson City, altitude 1,500 meters, Watson 469, 
April, 1868; Empire city, Ormsby County, Jones 3879, 3880, May 23-June 19, 
1882; Reno and Verdi, Washoe County, Sonne, June, 1890; same station, 
Hillman in 1890. 
Uran: Silver Reef, altitude 1,350 meters, Jones 5163, May 4, 1894. 
Arizona: Peach Springs, Mohaye County, Lemmon 125, May, 1884; Tueson 
Mountains, Toumey 191, April 8, 1892; near Pagumpa, altitude 1,200 meters, 
Jones 5099, April 23, 1894. 
Formerly confused with J. nudicaule, from which it may be readily distinguished 
by its pubescent pedicels, ovaries, and fruit, all of which are glabrous in LL. nudi- 
caule. Also the range of L. neradense is farther west, in the Sierra Nevada region, 
while L. nudicaule belongs more especially to the plains and more eastern foothills. 
Lomatium nevadense cupulatum (Jones) C. & R. 
Peucedanum nevadense cupulatum Jones, Contr. to Western Botany no, 8: 29, 
1898. 
Involucels of bractlets united into a cup with hyaline margin, 6 to.8 
mm. long; oil tubes 8 or 9 on the commissural side. 
Type locality, gravelly mesas, ‘* Reno, Nevada,” altitude 1,500 
meters: collected by Jones, June 19, 1882, and April 22, 1897; type in 
Herb. Jones. 
Only known from the type locality. 
Specimens exanuned: 
Nrevaba: Type locality, Sonne 3, June, 1890. 
22. Lomatium daucifolium (Nutt.) C. & R. 
Peucedanum daucifolium Nutt. in Torr, & Gray, FL 1: 627, 1840. 
Peucedanum foeniculaceum daucifolium Torr. & Gray, 1. ¢. 
Peucedanum villosum Nutt. in Bot. King Surv. 181. 1871, in part. 
Peucedanimmn foenienlaceum of later authors, not Nutt. 
At first very tomentose, becoming more or less glabrate, with pedun- 
cles 1 to 2dm. long; leaves very finely dissected, ternate then pin 
