COULTER AND ROSE—-NORTH AMERICAN UMBELLIFERAE, 99 
Cicuta maculata angustifolia Hook. Fl. Bor. Am. 1: 259, 1834. 
Type locality, ‘on the Saskatchawan.” 
We have seen no authentically named specimens of this variety. It is perhaps 
not a variety of C. maculata, but should remain here until properly disposed of. To 
this variety perhaps should be referred the Cicuta with very narrow leaves collected 
in 1899 by Williams on the Yukon. 
7. Cicuta occidentalis (ireene, Pittonia 2:7, 1880. 
Stout. 9 to 18 dm. high; rootstock short, giving rise to slender roots 
£ 8 s 
above, and a fascicle of thick and elongated ones below; leaves twice 
pinnate; leaflets from linear-lanceolate to lanceolate, 5 to 8 em. long, 
sharply serrate and conspicuously reticulate beneath; fruit oblong, 
3 mm. long, constricted at the commissure, the ribs approximately 
equal in surface display (laterals largest in section), the intervals 
broad; oil tubes large. 
Type locality, Trinidad, Colo., ‘* near the New Mexican line;” col- 
lected by Greene, July 17, 1889; type in Herb. Greene, duplicate in 
U.S. Nat. Herb. 
In the Rocky Mountain region, from the Black Hills of South 
Dakota to Idaho, and southward through Colorado and northern 
Nevada to New Mexico. , 
Specimens examined : 
Sourn Dakota: Piedmont and Little Elk Creek, Black Hills, altitude 1,200 
meters, Rydberg 723, June 28, 1892; near Forest City, Griffiths & Schlosser, 
September 3, 1892. 
Nesraska: On Middle Loup River, near Mullen, Hooker County, Sand Hills 
region, Rydberg 1491, July 26, 1893. 
Wyominc: Banks of Snake River, Forwood, August 15, 1881; Meadow Creek, 
Nelson 790, August 9, 1894; Ione Ranch, Nelson 1597, August 10, 1895; Upper 
Madison Canyon, Yellowstone Park, Rydberg 4611, August 3, 1897; Snake 
River, Yellowstone Park, A. & FE. Nelson 6565, August 20, 1899. 
Montana: Columbia Falls, Williams 375, September 12, 1892. 
Ipano: Blackfoot, Palmer 298, July 8, 1898. 
Nevapa: Spring Valley, altitude 1,800 meters, Watson 441, September, 1868. 
Uran: Near Salt Lake City, altitude 1,290 meters, Jones 1909, August 18, 1880; 
Springville, altitude 1,350 meters, Jones 5615, August 11, 1894. 
Cotorapo: Trinidad, Tracy 38, June 8, 1887; same station, Greene, July 17, 1889 
(type); Bear Creek, near Morrison, Greene, July 28, 1889; college grounds, 
State Agricultural College, Bugfuim 286, August 5, 1890; Hotchkiss, Delta 
County, altitude 1,650 meters, Cowen, June 23, 1892; Fort Collins, altitude 
1,500 meters, Cowen, July, 1893 and 1895, 
New Menico: Las Vegas, G. R. Vasey, July 1881; Santa Fe, altitude 2,160 
meters, 4. A. & EF. Gertrude Tleller 3814, July 5, 1897; in the White Moun- 
tains, Lincoln County, altitude 1,890 meters, Wooton 233, July 28, 1897. 
As defined above, (€. occidentalis presents consistent characters and geographical 
distribution. Certain outlying forms, however, if referred here, would considerably 
extend the range and modify the specific limitations. Our material is insufficient to 
justify us in segregating these forms, but we present them as follows: 
(1) A Californian form, called forma frondosa by Professor Greene, and often con- 
fused with C. bolanderi, has leaflets which are much larger (becoming 10 cm. long) 
and more coarsely toothed. 
