Potato Family 351 



usually 2-celled ; stigma small. Fruit a several-seeded 

 berry. 



1. S. villosum Lam. Kather low and mostly spreading annual, 

 villous and more or less viscid; leaves conspicuously angulate- 

 dentate ; filaments somewhat pubescent ; berries yellow. 



2. S. Douglasii Dunal. Usually somewhat woody, 1-2 in. 

 high ; stems angular, the angles somewhat denticulate-scabrous, 

 otherwise more or less puberulent; leaves variously angular- 

 dentate, or some nearly entire ; umbels nearly opposite the leaves, 

 several-flowered ; flowers white or pale purplish, 8-14 mm. broad, 

 pubescent without, deeply 5-parted, the lobes lanceolate; anthers 

 yellow, 4-5 mm. long; filaments about 1 mm. long, stout, hairy, 

 nearly equaling the slender style ; fruit black. 



A common plant both in the valleys and mountains at lower altitudes. 

 Often appearing as an introduced plant along roadsides and in waste places. 



3. S. Xanti Gray. Stems woody, 3-10 dm. high, the younger 

 angled, moderately villous with many-celled unbranched, mostly 

 gland-tipped hairs ; leaves ovate, ovate-oblong to oblong-lanceo- 

 late, the largest 4-6 cm. long, acute or obtuse at the base, the 

 margins entire; corolla 1-2 cm. broad, usually deep violet, angu- 

 lately 5-lobed ; berry greenish. 



Occasional in the San Gabriel Mountains. 



4. S. Xanti intermedium Parish. Stems woody, lax, 2 m, 

 high or less, viscid; leaves cordate to oblong, at least obtuse at 

 base, often with lateral lobes near the base, 3-15 cm. long ; corolla 

 2-4 cm. broad. 



Common in all our low hills and in the mountains. 



5. S. Xanti glabrescens Parish. Stems woody, slender r 

 10-15 dm. high, glabrate or above hirsutulous with short, mostly 

 1-celled hairs ; leaves oblong, elliptic or lanceolate, mostly atten- 

 uate or acute at the base, 2-6 cm. long; corolla 2 cm. broad. 



Occasional in the valleys and foothills, mostly in dry and rather exposed 

 places. 



6. S. Wallacei (Gray) Parish. Stems woody, about 1 nK 

 high, densely tawny with long many-celled glandular, mostly 

 simple hairs; leaves thickish, usually smoother than the stems, 

 crenate, the lower ample, cordate, the upper ovate, rounded or 

 subcordate at base; calyx narrowly funnelform, deeply cleft or 



