PIPER—FLORA OF THE STATE OF WASHINGTON, 399 
16. Viola adunca Smith; Rees’ Cycl. 37: no. 63. 1817. 
Viola longipes Nutt.; Torr. & Gr. Fl. 1: 140. 1838. 
Viola canina adunea A. Gray; Proc. Am. Acad. 8:377. 1872. 
Tyre Locatiry: “From the west coast of North America.” Collected by Menzies. 
Rance; Alaska to California and Arizona. 
SPECIMENS EXAMINED: Clallam County, E/mer 2795; Orcas Island, Lyall 1861; Muckle- 
shoot, Dr. Ruhn; Seattle, Smith, May 3, 1889; Mount Rainier, Piper 2138 in part; Monte- 
sano, Heller 3928; Westport, Lamb 1102; Rockland, Suksdorf, April 10, 1858; Klickitat 
River, Flett 1061; Falcon Valley, Suksdorf 522; Roy, Allen, May 3, 1889; White Bluff 
Ferry, Lake & 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 202; Rock Creek, Piper 2795; Spokane, 
Piper, May 8, 1898, 2824: Sandberg & Leiberg 33: Pullman, Piper 1714, Elmer 123, Hull 417; 
Waitsburg, Horner 55, 54. 
ZONAL DISTRIBUTION: Upper Sonoran to Hudsonian. 
A very variable species. The alpine forms especially are aberrant and perhaps consti- 
tute a different species. 
16a. Viola adunca oxyceras (S. Wats. ) 
Viola canina oryceras 5. Wats. in Brewer & Wats. Bot. Cal. 1: 56. 1876. 
Type Locarity: “In the Sierra Nevada, in Yosemite Valley, and near Donner Pass.” 
Rance: Washington to California. 
SPECIMENS EXAMINED: North Yakima, Henderson 2501. 
17. Viola retroscabra Greene, Pittonia 4: 290. 1901. 
Type Locatitry: Southern Colorado. 
Rance: Washington and Montana to Colorado. 
SPECIMENS EXAMINED: Olympic Mountains, Piper, August, 1895; Mount Rainier, Piper 
2158 in part; Allen, July, 1892; Methow River, Whited 185; Klickitat River, Suksdorf’ 523; 
Stevens Pass, Sandberg & Leiberg 739. 
ZONAL DistRiBUTION: Hudsonian. 
Viota TricoLor L., the garden pansy occasionally occurs as an escape. 
VioLa HALLU Gray, listed by Suksdorf, probably does not grow within our limits. 
LOASACEAE. [Loasa Fanitny. 
MENTZELIA. 
Biennials; flowers large; placentae with 2 rows of ovules, which are separated by horizontal 
lamellae. 
Petals 2.5 to 8 cm. long; capsule 1.5 em. long .......2222.2.-2.--- 1. M. brandeger. 
Petals 5 to 6 cm. long; capsules 38 em. long... .2 22 2222222222-.- 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. albicaulis. 
Leaves not pinnatifid; seeds not tuberculate. 
Seeds nearly smooth with grooved angles; leaves ovate, entire 
orsinuate-dentate.-.-.2 22222 eee 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. 
Tyre cocatity: “Near the Simcoe Mountains on the mesa bordering Satus Creek.” 
Washington. Collected by Brandegee. 
RanGE: Known only by the type collection. 
SPECIMENS EXAMINED: Without locality, Brandegee 792. 
