182 CRUCIFEKAK. 



high; lower leaves broadly oblong or cuneate-obovate, coarsely serrate-toothed, 



narrowed at base into a winged petiole, 1 Vii to 2% in. long; upper leaves 

 orbicular with cordate-clasping base, :!/ , to 1 in. broad; petals white, with 

 purple veins, I lines long; pods arcuate, L' ' ._. to 3 in. long, 1 line wide. 



Montane species of Hie (Oast Ranges: Hood's Peak (Sonoma Co.) and 

 northward to Humboldt Co. 



2. S. orbiculatus Greene. Annual; herbage glabrous; main stem or 

 ascending axis short, 1 to 3 in. long, bearing many ascending branches, or 

 the branches at base spreading horizontally, 3 to 5 in. long; leaves rather 

 small, lower spatulate-oblong, upper round, cordate-clasping; sepals pink or 

 purple, 2 to 3 lines long; filaments distinct; pods falcate-recurved, mostly 

 exceeding 2 in. 



Mt. Diablo; Sierra Nevada from Mono Co. to Mt. Shasta. 



3. S. breweri Gray. Stems 1 to 2 ft. high, branching from near the base; 

 herbage glabrous and glaucous; leaves mostly sessile and clasping, the lower- 

 most broadly spatulate with a winged petiole, toothed, the cauline broadly 

 ovate and acute to narrowly lanceolate, denticulate or entire; flowers 3 to 4 

 lines long, purplish; sepals acuminate; 2 pairs of filaments connate; pods 

 ascending, short-pediceled, iy 2 to 2% in. long by y 2 line broad, ascending, 

 slightly curved; stigma sessile or nearly so; seeds small, orbicular, wholly 

 marginless. 



Inner South Coast Ranges: Mt. Hamilton, Arroyo del Puerto and Mt. 

 San Carlos. 



4. S. barbiger Greene. Glabrous, 1 to 2 ft. high, branched; cauline leaves 

 linear, entire; flowers white or purple, 3 lines long, subsessile; calyx sac- 

 cate; sepals connivent, with recurved whitish tips; petals white, unequal; fila- 

 ments dark purple, the upper pair connate and at length exserted; pods 1% 

 to 2 in. long, y 2 line wide, recurved. 



Colusa Co. to St. Helena. June. 



5. S. niger Greene. Stout, 1% to 3 ft. high, much branched, the herbage 

 glabrous and glaucous; leaves linear, the lower with shallow pinnate lobes or 

 teeth, the upper entire and auriculate-clasping; racemes loose, flexuous; flowers 

 4 to 5 lines long, long-pediceled; calyx broad and saccate; sepals dark purple 

 or black, obtuse; petals white; pods ascending, 1 to 2 in. long, 1 line broad, 

 on pedicels 6 to 12 lines long; stigma entire, sessile; seeds broadly elliptical, 

 narrowly winged. 



Hills at Tiburon, Marin Co. Apr. Seems like a robust glabrous form of S. 

 glandulosus. 



6. S. glandulosus Hook. JEWEL FLOWER. Nearly simple or branched, 

 1 to 2 ft. high, the herbage more or less hispid; lower leaves oblanceolate, 

 coarsely and often saliently toothed, at least the radical slender-petioled, the 

 upper lanceolate to linear, toothed or entire, sessile and auriculate-clasping, the 

 teeth callous-tipped; flowers 5 to 6 lines long; calyx commonly deep purple, 

 broad and saccate, 3 sepals comment at tips, the lower tree from the others 

 and usually spreading; petals purple, or white with conspicuous purple veins; 

 Longest pair of filaments often connate for their entire length and with reduced 

 anthers; pods curved, more or less spreading on short pedicels, glabrous or 

 hispid, 2 to '■> in. long, 1 line wide; seeds elliptical, narrowly winged. 



Common in the mountains at middle altitudes or at the higher altitudes in 

 the hills. Apr. 



7. S. secundus Greene. Hither simple or with slender branches, 10 to 18 



