PIPER FLORA OF THE STATE OF WASHINGTON. 401 



Stems simple. 



Herbage pilose-pubescent ... 20. E. ursinum. 

 Herbage not pilose-pubescent. 

 Leaves sessile, narrow, 



erect, acute 2\. E. (IriimniomlU. 



Leaves petioled, broadish, 



spreading, obtuse 22. E. delicafiiin. 



1. Epilobium. angustifolium L. Sp. PI. 1: .347. 1753. Fireweed. 

 EpUohium spicafuin Lam. Fl. Fr. 3: 482. 1778. 



Ttpe locality: European. 



R.\nge: Ala.ska to Labrador, southward to California, New Mexico, and Carolina. 



Specimens examined: Silverton, Boitclc 77: Fish Lake, Dunn, August 1, 1900: near 

 Egbert Springs, Samlberg & Leiherg 407 : North Fork Bridge Creek, Elmer G37 ; Coulee City, 

 Lake & Hull 528; Fort Colville, Lyall in 1860; Cascade Mountains, latitude 49°, Lyall in 

 1859; without locality, Fasei/ 242; Rock Lake, La^-e c{r/7«ZZ, August, 1892; Clarks Springs, 

 Kreager 126; Clallam County, Elmer 2566; North Yakima, Watt, August, 1895. 



Zonal distribition: Upper Sonoran and Transition. 



Epilobium OPACUM,a said by Hooker to have been collected by Douglas and by Scouler 

 about Fort Vancouver, is proliably a form of E. angustifolium. 



2. Epilobium latifolium L. Sp. PI. 1: 347. 1753. 

 TypE locality: Siberia. 



Range: Arctic America, southward to Oregon, Colorado, and Canada. 

 Specimens examined: Olympic Mountains, Piper 2343; Mount Rainier, Smith 875; 

 vSilverton, Bouck; Horseshoe Basin, Lake ct" Hull 530; North Fork Bridge Creek; Elmer 664, 

 Zonal distribution: Arctic. 



3. EpUobium luteum Pursh, Fl. 1: 2.59. 1814. 



Type locality: Northwest coast of America. Collected by Menzies. 



Range: Alaska to Oregon. 



Specimens examined: Mount Rainier, F/f^i 300; Pi;>tT, August, 1895; ^4//eft293; Mount 

 Adams, Suksdorf 549; Stampede Tunnel, Henderson 2440; Horseshoe Basin, Lake d' Hull 

 529; Mount Stuart, Elmer 1091 ; Stevens Pass, Sandherg d' Leiherg 730; Cascade Mt)untains, 

 latitude 49°, Lyall; Clallam County, Elmer 2.560. 



Zonal distribution: Canadian and Hudsonian. 



4. Epilobium paniculatum Nutt.; Torr. & Gr. Fl. 1: 490. 1840. 



Type locality: " Plains of the Oregon and Rocky Mountains." Collected by Nuttall. 



Range: British Columbia to California, Arizona, and Colorado. 



Specimens examined: Seattle, Piy^er 103; Silverton, 5o«cA: in 1889; Tacoma, Flett 130; 

 Nisqually Valley, ^Z/en 14; Lake Park, Piper in 1895; Mount Stuart, E/mer 1092; Wenache, 

 Whited 1330, 1159; North Yakima, Watt in 1895; Tieton River, Cotton 488; Peshastin, 

 Sandberg d Leiberg 538; Lake Chelan, Lake d Hull 525; Spokane, Piper 2361, 2360; Blue 

 Mountains, Piper, August 2, 1896, 23.58; Pullman, Piper 1631; Hull in 1892; without local- 

 ity, Vasey in 1889; Spokane, Kreager .573, 536; ClaHam County, Elmer 2558, 2561; Mount 

 Carlton, Kreager 152. 



Zonal distribution: Transition. 



4a. Epilobium paniculatum jucundum (A. Gray) Trelease, Rep. Mt). Bot. Gard. 2: 

 8.5. 1891. 

 Epilobium jucundum A. Gray, Proc. Am. Acad. 12: .57. 1876. 

 Type locality: Scott Valley, California. Collected In- Greene. 

 Range: Washington to California. 

 Specimens examined: Klickitat County, iS'i/^Wo/;/' 17; Leavenworth, Whited 247. 



cLehm. Pus,'. 2: 14. 18.30. 

 20418—00 M 26 



