96 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
* Specimens examined: 
OreGoN: Swamps near Dairy, Klamath County, Applegate, August 11, 1895. 
WasHincton: ‘In marshes at the confluence of the Columbia,’’ Douglas (type); 
along Straits of De Fuca, Scouler; Cooper; Yakima River, Greene, August 14, 
1889 (type of CL purpurata); Henderson, July-August, 1892. 
British CoLtumpra: ‘ Kooskooskee River,’ Wilkes’ Exped. 560. 
AvaAskKA: Karluk River, Bean, in 1889; Khantaak Island, Funston 71, July 22, 
1892. 
3. Cicuta vagans Greene, Pittonia 2:9. 1889. 
Stout, 6 to 15 dm. high, the branches often diffuse or reclining and 
spreading over a considerable area; rootstocks often very large and 
fleshy-thickened, horizontal or erect, aerial or nearly so, giving rise 
to few slender fibrous roots and numerous thick elongated ones, but 
rootstocks sometimes not at all thickened; leaves twice to thrice 
pinnate, rather broad in outline; leaflets rather thin, linear-lanceolate 
to lanceolate, 3 to 7.5 cm. long, sessile or nearly so, usually cuneate 
at base, more remotely and less sharply serrate than in C. douglasii, 
the teeth not at all faleate, and the lower surface not strongly reticu- 
late; fruit orbicular, 2 to 3 mm. long, the ribs and oil tubes as in 
C. douglasii. 
Type locality, ‘tin an estuary of Lake Pend Oreille, Idaho;” col- 
lected by Greene, August 9, 1889; type in Herb. Greene, duplicate in 
U. S. Nat. Herb. 
In wet places and marshes, from northeastern California to Idaho, 
British Columbia, and Vancouver Island. 
Specimens examined: 
Cauirornia: Wet places, Truckee, Nevada County, Sonne 6, August, 1892. 
OreGon: Near Fort Klamath, altitude 1,470 meters, Letberg 700, August 11, 1894, 
WasHINGTon: Wet or boggy meadows, Falcon Valley, Suksdorf, July-September, 
1883; Kitsap County, Piper 640, August 3, 1889; Samish Lake, Whatcom 
County, Suksdorf 1192, July 16, 1890; near Sumas, Whatcom County, and 
Olympia, Thurston County, Henderson 373, July-August, 1892; near Corby, 
Grant, February, 1896 (rootstocks); open swamp, upper valley of the 
Nesqually, Allen 255, July 14-September 17, 1896; Waitsburg, Walla Walla 
County, Horner 620, September 11, 1897; near Montesano, Chehalis County, 
A, A. & E. Gertrude Heller 4069, July 20, 1898. 
Ipano: Lake Pend Oreille, Greene, August 9, 1889 (type); valley of Lake Tese- 
mini, Kootenai County, Sandberg 686, July 21, 1892; near Ketchum, Alturas 
County, Henderson 3402, July 23, 1895; wet soil, valley of North Fork of 
Coeur d’ Alene River, altitude 930 meters, Leiberg 535, August 14, 1895, 
British Cotumpia: Long Lake, Vancouver Island, Macoun, August 23, 1889; 
near Westminster, Macoun 292, August 28, 1893. 
This species is very apt to be confused with C. douglasti, but differs in its general 
habit, its foliage, and usually in its much enlarged and more or less aerial rootstocks. 
4. Cicuta bolanderi Watson, Proc. Am. Acad. 11: 139. 1876. 
Stout, erect, 12 to 27 dm. high; rootstock short and thickish, giving 
rise below to numerous somewhat thickened elongated roots; leaves 
twice to thrice pinnate; leaflets linear-lanceolate and acuminate, 2 to 
4 cm. long, closely and sharply serrate (teeth with spinulose tips), 
