MUSTARD FAMILY 



55 



subentire or sliallowly sinuate, 1 to 2% inches broad; pods erect on spreading 

 pedicels % to l^^ inches long; style very short. 



Montane, 5500 to 6000 feet : Placer Co. to Siskiyou Co. North to British Colum- 

 bia, east to northern Nevada. June-July. 



Locs. — Deer Park, Placer Co., Helen Geis 65; Truckee road to Hot Sprs., Talioe, Sonne; 

 w. slope Washoe Mts., Nevada Co., Davy 3162 ; Marble Mountain Valley, Siskiyou Co., Butler 132. 



Eefs. — Cardamine lyallii Wats. Proe. Am. Acad. 22:466 (1887), based on spms. from 

 the Cascade Mts. of Ore. and Wash. (Wilkes, Lyall, Hall 29, G. B. Vasey, Howell), Blue Mts. 

 of Ore. (CusicTc) and Clover Mts. of Nev. (Watson) ; Jepson, Man. 425 (1925). 



3. C. breweri Wats. Sierra Cress. (Fig. 133.) Steins from a slender root- 

 stock, erect or decumbent at base, 7 to 16 inches high; herbage glabrous or nearly 

 SO; leaves 3 (or to 7)-foliolate, or the basal mostly simple; terminal leaflet usually 

 round-cordate, entire to sliallowly lobed; lat- 

 eral leaflets usually very much smaller and 

 rounded; pods 8 to 13 lines long, 14 to % line 

 wide, ascending or erect on pedicels 4 to 7 lines 

 long; style almost none. 



Montane, 4000 to 8500 feet : Sierra Nevada 

 from Tulare Co. to Modoc Co.; and near sea- 

 level at Humboldt Bay. North to Washington, 

 east to Wyoming. Apr.-July, 



Locs. — Kern Lake, Kern Canon, Jepson 4943 ; Wol- 

 verton Creek, Marble Fork Kaweah Eiver, Hopping 

 348; North Fork Kings River; Soda Sprs., upper San 

 Joaquin River, Madera Co., Congdon; Walker Lake, 

 Mono Co., Congdon; Truckee River, Nevada Co., Davy 

 3163; Donner Lake, Nevada Co., Heller 6918; Yuba 

 Pass, Sierra Co.; Bridge Creek, Lassen Co., BaJcer 4" 

 Nutting; e. slope Mt. Shasta, M. S. Balcer; Eureka, 

 Tracy 4891. 



Refs. — Caedamine brevfeei Wats. Proc. Am. Acad. 

 10:339 (1875), type loc. Sonora Pass, Brewer; Jepson, 

 Man. 425 (1925). C. modocensis Greene, Pitt. 4:203 

 (1900), type loc. Lassen Creek, Modoc Co., E. M. 

 Austin. 



Fig. 133. Cardajviine breweri Wats. 

 a, base of plant, X % ; &, upper part of 

 plant, X 1/2; c, fl., X 4; d, pod, X 1. 



4. C. angulata Hook. Wood Cress. Stems 

 erect, 1 to IV2 feet high, abundantly stolonifer- 

 ous; herbage glabrous; leaves 3 or 5-foliolate, 

 when 5-foliolate the lower pair of leaflets usu- 

 ally much smaller; leaflets ovate, 1 to 2i/4 inches long, somewhat angulately 5-lobed, 

 subpalmately and strongly 5-nerved; racemes 2 to 4% inches long, rather few- 

 flowered; pods lanceolate, straight, 9 to 11 lines long, spreading. 



Wet places in Redwood forest, 400 to 600 feet : Humboldt Co. North to British 

 Columbia. May. 



Loc. — Prairie Creek, Tracy 7588. The lobes of the leaves are few, remote and angular; 

 vrhile variable they still give the foliage a peculiar aspect. 



Refs. — Cardamine angulata Hook. Fl. Bor. Am. 1:44 (1829), type loc. Fort Vancouver, 

 Columbia River, Douglas, Scolder; Bot. Misc. 1:343 t. 69 (1830). 



5. C. gambelii Wats. Swamp Cress. Stems rather stout, 2 to 4 feet long, 

 decumbent and rooting at base but not properly stoloniferous; herbage glabrous 

 or sparingly soft-villous; leaflets 4 to 6 pairs, broadly ovate to narrowly oblong, 

 cuneate at base, acute, 1 or 2-toothed on each side, 4 to 10 lines long; raceme very 

 dense, becoming elongated and loose in fruit; flowers white, 2^/2 to 3 lines long; 

 pods 9 to 10 lines long, mostly arcuate, on divaricate pedicels nearly as long; style 

 slender, 1 line long. 



