PIPER—-FLORA OF THE STATE OF WASHINGTON. 391 
1860; Egbert Springs, Sandberg & Leiberg 361, Wenache, Whited 1253; Ellensburg, Whited 
499: Tieton River, Cotton 454; Muckleshoot, Dr. Ruhn; Seattle, Piper in 1885; Mission, 
Kreager 486; valley of Columbia below the Chelan, Watson, October 14, 1880; without 
locality, Vasey in 1889; Pullman, Elmer 880; Piper 1653; Hull 656; Tukanon River, 
Lake & Hull, July, 1892; Rattlesnake Mountains, Cotton 693; Clealum Lake, Cotton $53. 
ZONAL DISTRIBUTION: Upper Sonoran and Transition. 
ELATINACEAE. Warerwort F amity. 
Plants glabrous; flowers parts 2 to 4.2... -..-- +--+ 2 +--+ reece c recente ELATINE. 
Plants pubescent; flower parts 5.....-.---- +--+ +--+ +--+ 0200s creer rrr Bercia. 
ELATINE. 
Flower parts 2 or 3; seeds nearly straight.........-.----------------- 1. E. triandra. 
Flower parts 4; seeds strongly curved... ..---------- +--+ 2555577000 2. E. californica. 
1. Elatine triandra Schkuhr, Handb. 1: 345. pl. 1096. f. 2. 1791. 
Type LOCALITY: Germany. 
Rance: Illinois, Nebraska, Wyoming, Washington. Europe. 
SPECIMENS EXAMINED: Usk, Areager 367. 
2. Elatine californica A. Gray, Proc. Am. Acad. 13: 361, 364. 1878. 
Type Locatiry: ‘‘In Sierra Valley, on the Sierra Nevada, alt. 5000 feet,’ California. 
Collected by Lemmon. 
Rance: Washington to California. 
SPECIMENS EXAMINED: Spokane County, Suksdorf 258; Spokane, Piper 2643. 
ZoNaL pistripuTion: Arid Transition. 
BERGIA. 
1. Bergia texana (Hook.) Seub.; Walp. Repert. 1: 285. 1842. 
Merimea texana Hook. Ic. 8: pl. 278. 1840. 
Elatine terana Torr. & Gr. Fl. 1: 678. 1840. 
Type Locatity: Texas. Collected by Drummond. 
Rance: Washington to California and Texas. 
SPECIMENS EXAMINED: West Klickitat County, Suksdorf 959, 618; Almota, Piper, 
September, 1897. 
ZONAL DISTRIBUTION: Upper Sonoran. 
VIOLACEAE. Viover FAMILY. 
VIOLA. VIOLET. 
Acaulescent. 
Flowers small, white.......-------------- +--+ +202 cc cc cr tte? 1. V. macloskeyji. 
Flowers larger, violet. 
Lateral petals bearded at base; rootstocks thick. 
Plants not stoloniferous; stipules small. 
Herbage glabrous... ..---------------++++-----> 2. V. nephrophylla. 
Herbage hirsute or villous. ...-----.------------- 3. V. cuspidata. 
Plants stoloniferous; stipules large.......-.----------- 4 V. langsdorfir. 
Lateral petals beardless; rootstocks long and slender. ..-- --- 5. V. palustris. 
Caulescent. 
Flowers yellow. 
Stems prostrate, stolon-like; leaves evergreen. 
Leaves cordate; leafy branches producing petaliferous 
flowers. ....------- Lee ee ee eee eee Se cee eee ee eee 6. V. sempervirens. 
