PIPER—FLORA OF THE STATE OF WASHINGTON. 299 
9. Polygonum erectum L. Sp. Pl. 1: 363. 1753. 
Type Locauity: “ Habitat in Philadelphia.” 
SPECIMENS EXAMINED: Yakima, Piper, July 9, 1897. 
10. Polygonum minimum 8. Wats. Bot. King. Explor. 315. 1871. 
Type Locariry: “Wahsatch and Uinta Mountains; 9-11,000 feet altitude.” 
Rance: Alaska to California and Utah. 
SPECIMENS EXAMINED: Olympics, Piper 1085; Mount Rainier, Piper 2122; Goat Moun- 
tains, Allen 264; Mount Adams, Suksdorf 605; Howell 421; east of Mount Adams, Fletr 
1047; Klickitat River, Flett 1042; Stevens Pass, Sandberg & Leiberg 799; Horseshoe Basin, 
Elmer 725; Blue Mountains, Piper 2436, 2421. 
ZONAL DISTRIBUTION: Arctic. 
11. Polygonum ramosissimum Michx. FI. 1: 237. 1803. - 
Tyre Locaity: “In regione Illinoense.”’ 
Rance: Washington to Saskatchewan, south to California and New Mexico; Maine to 
New Jersey near the coast. 
SPECIMENS EXAMINED: Falcon Valley, Suksdorf 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. Club 20: 213. 1893. 
TypE Locatity: ‘fon the Sawatch Range, Colorado.” 
Rance: Washington to Dakota and Colorado. 
SPECIMENS EXAMINED: Falcon Valley, Suksdorf, July 19, 1886. 
13. Polygonum douglasii Greene, Bull. Cal. Acad. 1: 125, 1885, 
Type LocaLiry: None cited. 
Rance: 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, Allen 263; Mount Adams, Suksdorf 607; Mason County, 
Piper 903; Wenache, Whited, June, 1896; Ellensburg, Whited 541, 542; Harrington, Sand- 
berg & Leiberg 216; Charleston, Piper 2263; Blue Mountains, Piper, July 16, 1896; Pullman, 
Piper 1858. 
ZONAL DISTRIBUTION: Transition. 
This species was formerly mistaken for P. tenue Michx. and references to it appear in 
the older works under that name. 
13a. Polygonum douglasii montanum Small, Mon. Polyg. 118. 1895. 
Polygonum tenue latifolium Engelm.; Gray, Proc. Acad. Phila. 1868: 75. 1864, not P. 
aviculare latifolium Michx. 1803. 
Polygonum douglasii latifolium Greene, Bull. Cal. Acad. 1: 125. 1885. 
Type Locauitry: Colorado. 
RanGeE: Washington to California and Arizona. 
SPECIMENS EXAMINED: Blue Mountains, Horner 426, 427. 
14. Polygonum majus (Meisn.) Piper, FI. Palouse Reg. 63. 1901. 
Polygonum coarctatum majus Meisn, in DC, Prod. 14: 101. 1856. 
Tyre Locauity: “Ad flum, Columbia (Dougl.!) in mont. Scopulosis (Geyer m. 355!).” 
The Geyer plant is really from the Kooskoosky River, Idaho. 
Rance: Washington, Oregon, and Idaho. 
SPECIMENS EXAMINED: White Salmon, Suksdorf; Wenache, Whited 1298, 1127; Ellens- 
burg, Elmer 386; North Yakima, Steinweg in 1894; Rock Island, Sandberg & Leiberg 434; 
west Klickitat County, Suksdorf 212; Pasco, Hindshaw 31; Loon Lake, Winston, July 20, 
