COULTER AND ROSE—-NORTH AMERICAN UMBELLIFERAE. 219 
rather small, pinnately decompound, with numerous short linear seg- 
ments; umbel somewhat equally 6 to 15-rayed, with involucels of linear 
to ovate more or less tomentose bractlets; rays 2.5 to 7.5 em. long; 
pedicels 6 to 10 mm. long; flowers white; fruit nearly orbicular, 
coarsely pubescent (sometimes becoming almost glabrous), 8 to 14 mm. 
long, 7 to 12 mm. broad, with thin membranous wings broader than the 
body, and filiform dorsal and intermediate ribs; oil tubes large and 
solitary in the intervals (an occasional secondary one in the lateral 
intervals), 4 on the commissural side; seed deeply sulcate beneath the 
oil tubes, with plane face. 
Type locality, ‘*California;” collected by /ouglas, type in Herb. 
Gray. 
Southern California. 
Specimens ecamined : 
Cauirornia: Bigelow, in 1853-54; type specimen as cited under type locality; 
Angel Island, G. R. Vasey, in 1875; Cuyamaca Mountains, G. R. Vasey 230, 
May, 1880; San Luis Obispo County, Mrs. Summers 356, April 25, 1882; San 
Diego County, Pringle, May 4, 1882; San Diego, Jones 3088, March 20, 1882; 
Santa Ysabel, San Diego County, Henshaw, April 8-24, 1893; Los Angeles 
County, Hasse, May 21 1893; Saugus, Los Angeles County, Canby, in 1894; 
near San Diego, Rutter 53, April 11, 1895; Cuyamaca Mountains, altitude 
1,380 meters, Parish 4419, June 5-7, 1897, 
19. Lomatium tomentosum (Benth.) C. & KR. 
Peucedanum tomentosum Benth. Pl. Hartw. 312. 1849. 
More or less densely villous-tomentose, somewhat caulesecent or - 
scarcely so, about 3. dm. high; leaves finely dissected into narrow or 
filiform segments; umbel with 4 to 8 equal rays, and involucels of linear 
to lanceolate or ovate acuminate bractlets; rays (fertile) 2.5 to 7.5 em. 
long; pedicels 6 to 12 mm. long; flowers white; calyx teeth evident; 
fruit ovate to orbicular, densely tomentose, 10 to LS mim. long, 6 to 
10 mm. broad, with thickish wings from not quite as broad as body to 
broader, and prominent dorsal and intermediate ribs (concealed by 
the tomentum); oil tubes mostly 3 in the intervals, 4 on the commis- 
sural side; seed face somewhat concave. 
Type locality, ‘tin amnibus exsiccatis fluyiorum vallis, Sacramento,” 
Cal., collected by //urtireg, no. 257 (but sent out as no, 1751), in 
1846-47; type in Herb. Kew, duplicate in Herb. Gray. 
California, from the bay region to Siskiyou County. 
Specimens examined: 
CaLirorNIA: San Luis Obispo, Brewer 461, April, 1861; Ukiah, Mendocino 
County, Bolander 3967, in 1864; Sausalito, Marin County, Kellogg & Harford 
1156, May 20, 1868; Chico, Butte County, Mrs, Rk. M. Austin, May, 1888; 
Contra Costa County, Greene, May, 1889; Little Chico Creek, Butte County, 
Mrs. R. M. Austin 269, May, 1896; Sisson, Siskiyou County, Brown, in 1897; 
Mission Hills, San Francisco, Alice Hastivood, May 20, 1898. 
