PIPER FLORA OF THE STATE OF WASHINGTON. 427 



Specimens examined: Montesano, Heller 4069; Sumas, Henderson 373; Olympia, Hen- 

 derson 373; Nisqually Valley, Allen 255; Falcon Valley, Suksdorf, July, September, 1883; 

 Kitsap County, Piper 640; Puyallup Reservation, Brodie, September, 1900; Chambers 

 Lake, Henderson, August 23, 1892; Samish Lake, Suksdorf 119Q; Cottonwood Creek, Vasey, 

 September 18, 1901; Waitsburg, Horner 620, 574; Clallam County, Elmer 2781. 



Zonal distribution: Transition. 



The characters used to differentiate this from the preceding are admittedly not very 

 satisfactory. Good series of specimens may demonstrate them to be illusive. 



3. Cicuta occidentalis Greene, Pittonia 2: 7. 1889. 



Type locality: Trinidad, Colo., "near the New Mexican line." 



Range: In the Rocky Mountain region, from the Black Hills of South Dakota to Wash- 

 ington, and southward through Colorado and northern Nevada to New Mexico. 



Specimens examined: Spokane, Piper 3516; Pullman, Piper, August 23, 1897, 3512; 

 Spokane, Kreager 555; Meyer's Falls, Kreager 503. 



Zonal distribution: Arid Transition. 



The three foregoing species appear in Suksdorf 's list under the names C. virosa L., C 

 maculata L., and C. californica A. Gray, for which they were formerly mistaken. 



ZIZIA. 



1. Zizia cordata (Walt.) Koch; DC. Prod. 4: 100. 1830. 



Smyrnium cordatum Walt. Fl. Car. 114. 1788. 



Thaspium trifoliatvm apierum A. Gray, Man. ed. 2. 156. 1856. 



Type locality: None mentioned, but Carolina by implication. 



Range: From eastern Canada to North Carolina and Alabama and extending westward 

 to Assiniboia, Alberta, Washington, and Colorado. 



Specimens examined: Crab Creek, Suksdorf 316; Wilbur, Henderson 2516; Hangman 

 Creek, Sandherg & Leiherg 46; Pullman, Elmer 890; Piper 1557; Lake cfc Hull 534. 



Zonal distribution: Arid Transition. 



LEIBERGIA. 



1. Leibergia orogenioides Coult. & Rose,Contr. Nat. Herb. 3: 575. pi. 21. 1896. 



Type locality: "Santianne Creek bottoms, Coeur d'Alene Mountains, Idaho, altitude 

 950 meters." Collected by Leiberg. 



Range: Wet ground, along streams, Idaho and Washington. 



Specimens examined: Spokane County, Suksdorf {the distributed specimens cultivated 

 at Bingen, no. 1211). 



Zonal distribution: Arid Transition. 



A related and undescribed species is represented by imperfect specimens collected by 

 Suksdorf between Cottonwood and Cheney (no. 314, June 14, 1884). 



OENANTHE. 



1. Oenanthe sarmentosa Presl.; DC. Prod. 4: 138. 1830. Water parsley. 



Type locality: "Nootka Sound," Vancouver Island. Collected by Ilaenke. 



Range: From British Columbia to central California. 



Specimens examined: Olympic Mountains, J. M. Grant in 1889; Montesano, Heller 

 3985; Seattle, Piper 632; Tacoma, Flett 147; Sumas, Lyall; Port Ludlow, Binns, July 25, 

 1890; upper Nisqually Valley, Allen 35; Wind River, Flett 1300; west Klickitat County, 

 Suksdorf 57; Skokomish Valley, Kincaid, June 1892; without locality, Vasey 303; Gray's 

 Harbor, Wilkes Expedition; Olympic Mountains, Elmer 2762. 



Zonal distribution: Humid Transition. 



Oenanthe californica S. Wats, has been reported from Washington and it is listed 

 by Suksdorf, but it is quite certain that it does not occur so far north. 



