PIPER FLORA OF THE STATE OF WASHINGTON. .229 



9. Polygonum erectum L. Sp. PI. 1 : 363. 1753. 

 Typk locality: "Habitat in Philadelphia." 

 Specimens examined: Yakima, Piper, July 9, 1897. 



10. Polygonum minimum S. Wats. Bot. King. Explor. 315. 1871. 



Type locality: "Wahsatch and Uinta Mountains; 9-11,000 feet altitude." 



Range: Alaska to California and Utah. 



Specimens examined: Olympics, Piper 1085; Mount Rainier, Piper 2122; Goat Moun- 

 tains, Allen 264; Mount Adams, SuJcsdorf 605; Howell 421; east of Mount Adams, Flett 

 1047; Klickitat River, Flett 1042; Stevens Pass, Saniberg & Leiherg 799; Horseshoe Basin, 

 Elmer 725; Blue Mountains, Piper 2436, 2421. 



Zonal distribution: Arctic. 



11. Polygonum ramosissimum Michx. Fl. 1: 237. 1803. ■* 

 Type locality: "In regione lUinoense." 



Range: Washington to Saskatchewan, south to California and New Mexico; Maine to 

 New Jersey near the coast. 



Specimens examined: Falcon Valley, SuJcsdorf 475; Bingen, Suksdorf 1406; Yakima 

 City, Piper, July 9, 1897 ; Kalispel Lake, Kreager 450. 



Zonal distribution: Upper Sonoran and Arid Transition. 



12. Polygonum sawatchense Small, Bull. Torr. Cluh 20: 213. 1893. 

 Type locality: "on the Sawatch Range, Colorado." 



Range: Washington to Dakota and Colorado. 



Specimens examined: Falcon Valley, Suksdorf, July 19, 1886. 



13. Polygonum douglasii Greene, Bull. Cal. Acad. 1: 125. 1885. 

 Type locality : None cited. 



Range: British Columbia to Vermont, south to California and Texas. 



Specimens examined: Clallam County, Elmer 2683; Olympic Mountains, Piper 2239; 

 Flett, July 21, 1897; Whidby Island, Gardner 260; Mount Rainier, Piper 2130; Lake Cush- 

 man. Piper 2240; Goat Mountains, ^ZZcn 263 ; Mount Adams, iSutsrfor/" 607; Mason County, 

 Piper 903; Wenache, Whited, June, 1896; Ellensburg, Whited 541, 542; Harrington, Sand- 

 berg cb Leiberg 216; Charleston, Piper 2263; BlueMountains, Piper, July 16, 1896; Pullman, 

 Piper 18.53. 



Zonal distribution: Transition. ' 



This species was formerly mistaken for P. tenne Michx. and references to it appear in 

 the older works under that name. 



13a. Polygonum douglasii montanum Small, Mon. Polyg. 1 18. 1895. 



Polygonum ten'ue latifolium Engelm.; Gray, Proc. Acad. Phila. 1863: 75. 1864, not P. 

 aviculare latifolium Michx. 1803. 



Polygonum douglasii latifolium Greene, Bull. Cal. Acad. 1 : 125. 1885. 



Type locality: Colorado. 



Range: Washington. to California and Arizona. 



Specimens examined: Blue Mountains, Homer 426, 427. 



14. Polygonum majus (Meisn.) Piper, Fl. Palouse Reg. 63. 1901. 

 Polygonum coarctatum majus Meisn. in DC. Prod. 14: 101. 1856. 



Type locality: "Ad flum. Columbia (Dougl.!) in mont. Scopulosis (Geyer n. 355!)." 

 The Geyer plant is really from the Kooskoosky River, Idaho. 



Range: Washington, Oregon, and Idaho. 



Specimens examined: White Salmon, Suksdorf; Wenache, Whited 1298, 1127; Ellens- 

 burg, Elmer 386; North Yakima, Steinweg in 1894; Rock Island, Sandherg cfc Leiherg 434; 

 west Klickitat County, Suksdorf 212; Pasco, Hindshaw 31; Loon Lake, Winston, July 20, 



