PIPER FLORA OF THE STATE OF WASHINGTON. 251 



Sandberg <& Leiherg 585; Horseslioe Basin, Lal-e d- IIull, August, 1892; Bridge Crock, Elmer 

 713; without locality, Cooper. 



Zonal distribution: Canadian and Transition. 



11. Claytonia diffusa Nutt.; Torr. & Gr. Fl. 1 : 202. 1888. 

 MorUia diffusa Greene, Fl. Fran. 181. 1891. 



Type locality: "In pine woods, a few miles above Fort Vancouver." Collected by 

 Nuttall. 



Range: Washington to California in the coast region. 



Specimens examined: Gig Harbor, Flett 5; Larm River, Snlsdoif 104: Seattle, Piper in 

 1885. 



Zonal distribution: Humid Transition. 



12. Claytonia dichotoma Nutt.; Torr. & Gr. Fl. 1: 202. 1838. 

 Montia dichotoma Howell, Erythea 1: 36. 1893. 



Type locality: "In wet places on rocks, near the junction of the \Valdaniet with the 

 Oregon." Collected l)y Nuttall. 



Range: Washington, Idaho, and Oregon. 



Specimens examined: Klickitat Hills, C^o/znaft, April, 1895; HoircHHd; White Salmon, 

 Suksdorf, June, 1878; Spokane, Piper 2667, May 19, 1899; Pullman, Elmer 173; without 

 locality, Geyer 648. 



Zonal distribution: Arid Transition. 



13. Claytonia linearis Dough; Hook. Fl. Bor. Am. 1: 224, pi. 71. 18:34. 

 Montia linearis Greene, Fl. Fran. 181. 1891. 



Type locality: "Moist rocky places: on the Great and Little Falls of tiie Columbia, 

 abundant." Douglas. 



Range: British Columbia to Montana and California. 



Specimens examined: Whidby Island, Gardner 55; Tacoma, Flett 3; Klickitat River, 

 Flett 1289; Hangman Creek, Sandberg & Leiherg il; without locality, Douglas; without 

 locality, 6Vt/e/- 317; Pullman, E'/mer 157; Piper 1713; Hull, May 24,1892, if oo/e, May 16, 

 1893; Vancouver, Piper 4946; Seattle, Piper in 1889. 



Zonal distribution: Transition. 



14. Claytonia howellii (S. Wats.). 



Montia howellii S. Wats. Proc. Am. Acad. 18: 191. 1883. 



Type locality: "On Sauvies Island, in the Willamette River, Oregon." Collected by 

 Howell. 



Range: British Cokinibia to Oregon in the coast region. 

 Specimens examined: Seattle, Pipe?- 241. 

 Zonal distribution: Humid Transition. 



SPRAGUEA. 



1. Spraguea multiceps Howell, Erythea 1: 39. 1893. 



Spraguea umbellaia caudicifera A. Gray, Syn. Fi. 1 : 278. 1895. 



Type locality: Mount Hood, Oregon. 



Range: Washington and Oregon to Wyoming. 



Specimens examined: Cascade Mountains, latitude 49°, Lyall in 1860; Mount Rainier, 

 Piper 2091, 37; Allen 101; Mount Adams, SwA-sdo?/, September, 1877; Flett 1052; Nason 

 Creek, Sandberg cfc Leiberg 659; without locality, Cooper. 



Zonal distribution; Arctic. 



