PIPER — FLORA OF THE STATE OF WASHINGTON. 395 



16. Viola adunca Smith; Rees' Cycl. 37: no. 63. 1S17. 

 Viola longipes Nutt.; Torr. & Gr. Fl. 1 : 140. 1838. 



Viola canina adunca A. Gray; Proc. Am. Acad. 8:377. 1872. 



Ti'PE locality: "From the west coast of North America." Collected hy Mcnzies. 



Range: Alaska to California and Arizona. 



Speclmens examined: Clallam County, Elmer 279.5; Orcas Island, Lyall 1861; Muckle- 

 shoot, Dr. Ruhn: Seattle, Smith, May 3, 1889; Mount Rainier, Piper 2138 in part; Monte- 

 s-a.no, Heller 3928; Westport, Lamb 1102; Rockland, Suksdorf, April 10,18.58; Klickitat 

 River, Flett 1061; Falcon Valley, Suksdorf 522 ; Roy, Allen, May 3, 1889; White Bluif 

 Ferry, Late <& Hull, August 10, 1892; Yakima, Leckenby, April 22. 1898; Mrs. Steinweg; 

 Ellensburg, Whited 274, 346, 366; Badger Mountain, Whited 1217; Fort Colville, Lyall 1861 ; 

 Spangle, Suksdorf 246; without locality, Vasey 20Q; Rock Creek, Piper 2795; Spokane, 

 Piper, May 8, 1898, 2824; Sandbergd; Leiberg 33; Pullman, Piper 1714, Elmer 123, H.'dl 417; 

 Waitsburg, Horner 55, 54. 



Zonal distribution: Upper Sonoran to Hudsonian. 



A very variable species. The alpine forms especially are al)errant and perhaps consti- 

 tute a different species. 



16a. Viola adunca oxyceras (S. Wats.) 

 Viola canina oxyceras S. Wats, in Brewer & Wats. Bot. Cal. 1: .56. 1876. 

 TvPE locality: "In the Sierra Nevada, in Yosemite Valley, and near Domier Pass." 

 Range: Washington to California. 

 Specimens ex.\mined: North Yakima, Henderson 2501. 



17. Viola retroscabra Greene, Pittonia 4: 290. 1901. 

 Type locality: Southern Colorado. 



Range: Washington and Montana to Colorado. 



Specimens examined: Olympic Mountains, Pipe/, August, 1895: Mount Rainier, Piper 

 2138 in part; Allen, July, 1892; Methow River, Whited 185; Klickitat River, Suksdorf F>2S; 

 Stevens Pass, Sandberg cfc Leiberg 739. 



Zonal DisTPaBUTioN: Hud.sonian. 



Viola tricolor L., the garden pansy occasionally occurs as an e-scape. 



ViOL.v iiALLii Gra\', listed by Suksdorf, probably does not grow within our limits. 



LOASACEAE. Luasa Family. 



MENTZELIA. 



Biennials: flowers large; placentae witii2 rows of ovules, which are separated 1)V horizontal 

 lamellae. 



Petals 2.5 to 3 cm. long; capsule 1.5 cm. long 1. .1/. brandegei. 



Petals 5 to 6 cm. long; capsules 3 cm. long 2. M. laevicaulis. 



Annuals; flowers small; placentae each with a single row of ovules; no 

 horizontal lamellae. 



Leaves pinnatifid; seeds tuberculate, the angles obtuse 3. M . albicaidis. 



Leaves not pinnatifid; seeds not tul)erculatc. 



Seeds nearlv smooth with grooved angles; leaves ovate, entire 



orsinuate-dentate 4. M. integrifolia. 



Seeds sharply angled and pitted; leaves linear, entire 5. M. tenerrima. 



1. Mentzelia brandegei S. Wats. Proc. Am. Acad. 20*: 367. 1885. 



Type locality: "Near the Simcoe Mount anis on the mesa bordering Satus Creek." 

 Washington. Collected by Brandegee. 



Range: Known only by the type collection. 



Specimens examined: Without locality, Brandegee 792. 



