POTATO FAMILY 757 



corolla white, 8-10 mm. broad; berry globose, 10-15 mm. thick. Prairies, culti- 

 vated ground, waste places, "prairie-dog towns": w Ont. Kans. N.M. Ariz 

 B.C. Plain Mont. Je-S. 



2. S. nigrum L. Stem erect, branched, 1-12 dm. high; leaf-blades ovate 

 or oblong-ovate, 2-8 cm. long, undulate to sinuately lobed; inflorescence umbelli- 

 form; calyx-lobes ovate or oblong-ovate; corolla white or bluish, about 1 crn. 

 broad; lobes oblong or linear; berries subglobose, 5-8 mm. thick, black. Sandy 

 soil, waste places: N.S. Fla. Tex. Wash.; nat. or adv. from Eu. Plain. 

 Mr-D. 



3. S. interius Rydb. Stem 3-6 dm. high, usually with narrow denticulate 

 margins or wings; leaf -blades deltoid or rhombic, 3-7 cm. long, acuminate, 

 usually sinuately lobed or dentate, with acute or acuminate lobes or teeth; in- 

 florescence corymbiform; calyx-lobes ovate, 2 mm. long; corolla yellowish white; 

 lobes ovate, acute, 3-4 mm. long; berry greenish black, nearly 1 cm. in diameter. 

 River valleys among bushes: Neb. Kans. N.M. Ariz. Utah. Plain Sub- 

 mont. Je-Au. 



4. S. Douglasii Dunal. Annual or perennial, and then more or less shrubby 

 at the base; stem 1-3 m. high, denticulate on the angles, glabrous or strigose; 

 leaf-blades ovate or somewhat hastate, 3-6 cm. long, sinuate-dentate, grayish 

 strigose beneath; inflorescence corymbiform; calyx-lobes oblong, acute, erect in 

 fruit; corolla white or often tinged with blue, puberulent, its lobes 6-8 mm. long; 

 berry globose, black. Valleys: Calif. Ore. (? Colo.) Ariz. Mr-S. 



5. S. villosum Mill. Stem 3-10 dm. high, viscid-villous ; leaves ovate or 

 ovate-rhombic, coarsely sinuate-dentate, villous-hirsute, 2-5 cm. long; calyx- 

 lobes triangular, acute; corolla white or greenish ochroleucous; lobes 2-3 mm. 

 long; berry globose, yellow or greenish. Waste places and sandy soil: Wyo. 

 Colo. L. Calif B.C.; adv. from the Old World. Plain Submont. Jl-S. 



6. S. Jamesii Torr. Stem 1-3 dm. high, erect, sparingly hairy or glabrous; 

 leaves pinnately divided; divisions 5-7, lanceolate, subentire, 2-4 mm. long, 

 glabrate, or with scattered hairs; inflorescence cymose; corolla white; lobes 

 lanceolate, 7-8 mm. long. WILD POTATO. Mountains: Tex. Colo. Utah- 

 Ariz.; Mex. Son. Submont. Je-S. 



7. S. Dulcamara L. Stem climbing or twining, 4-15 dm. long; leaf-blades 

 ovate, 3-10 cm. long, acute or acuminate, undulate, entire or with a lobe or two 

 on one or both sides at the base; calyx glabrous, its lobes triangular; corolla blue 

 or white, about 1.5 cm. wide; lobes oblong-lanceolate, pubescent near the tips. 

 BITTERSWEET. Thickets: N.B. Fla. Kans. Ida.; adv. or nat. from Eu. Je- 

 Au. 



8. S. elaeagnifolium Cav. Perennial, with a cespitose caudex or rootstock; 

 stem 3-11 dm. high, silvery stellate-canescent, often more or less prickly; leaf- 

 blades oblong to linear, 5-15 cm. long, usually obtuse, undulate to deeply sinu- 

 ate, silvery-stellate; calyx 5-ribbed; corolla violet or white, 2-2.5 cm. broad; 

 berries globose, 1-1.5 cm. thick, yellow or black. Dry soil: Mo. Tex. Calif.; 

 Mex. Son. My-O. 



9. S. carolinense L. Stem erect, 3-6 dm. high, hirsute and prickly; leaf- 

 blades mostly ovate, sinuately toothed or lobed, 1-2 dm. long, green, but rather 

 densely stellate-pubescent, prickly on the petioles, midribs, and the stronger 

 veins beneath; corolla blue, about 2 cm. in diameter; berry 1-1.5 cm. in diameter, 

 globose. HORSE NETTLE. Sandy soil and waste places: Mass. Fla. Tex.- 

 Neb.; adv. in Utah and Idaho. Je-S. 



6. LYCOPERSICON Mill. TOMATO, LOVE APPLE. 



Annual herbs, with once or twice pmnately divided leaves. Flowers perfect, 

 in small racemes, opposite the leaves. Calyx mostly 5-parted. Corolla rotate, 

 5-lobed, plicate. Stamens usually 5; filaments short; anthers elongate, connate 

 or connivent, introrsely longitudinally dehiscent. Ovary 2-3-celled, many- 

 seeded. Fruit a berry. 



