SOLANACEAE (NIGHTSHADE FAMILY) 715 



small (6-10 mm. broad when expanded); fruiting calyx conical-ovoid with a 

 truncate or sunken base, 10-angled, loosely inflated, at length well filled by the 

 greenish-yellow berry. — Open rich grounds, Pa. to Minn., and southw. 



4. P. pubescens L. Pubescent hut not hoai^ ; leaves thin, entire at least 

 near the oblique but rarely cordate base ; stem slender, geniculate, diffusely 

 branched ; fruiting calyx subglobose^ shortly acuminate, carinateJy o-angled. — 

 Pa. to Va., and westw. 



5. P. pruinbsa L. (Strawberry Tomato.) Hoary-pubescent; stem 

 stouter ; leaves thicker, siuuate-deni,L;,te even to the oblique and distinctly 

 cordate base ; fruiting calyx subglobose, rather abruptly acuminate, carinately 

 5-angled. — Sandy soil, Mass. to Out., la., Kan,, and southw. 



G. P. barbadensis Jacq. Pubescent or somewhat hoary, near the two 

 preceding but with m n'e elongated ovoid and gradually 2it\.e\\M?ite fruiiing calyx 

 of somewhat firmer texture ; leaves toothed or entire, rounded or subcordate 

 at the scarcely oblique base. — Pa. {Knipe) to Mo. {Bush), and southw. Var. 

 oB.^cuRA (Miclix.) Rydb. Nearly glabrous. (P. obscura Michx.) — Mo. 

 (Bush. Eggert). and southw. 



7. P. missouriensis Mackenzie & Bush. Leaves repand, oblique but not 

 cordate at base, thin ; flowers 4-8 mm. in diameter ; fruiting calyx subglobose, 

 not sharply angled, 2 cm. or less in length. — Mo. and Kan. 



8. P. viscosa L. Cinereous or when yoking almost canescent tcith short 

 stellate or 2-3-forked pubescence ; stems ascending or spreading from slender 

 creeping subterranean shoots; leaves ovate or oval^ varying to oblong and 

 obovate, entire or undulate ; corolla greenish-yellow, with a more or less dark 

 eye; fruiting calyx globose-ovoid ; berry yellow or orange. — In sands on and 

 near the coast, Va. to N. C. and Fla. 



9. P. pumila Xutt. Dichotomously branched, 3 dm. high ; stems geniculate, 

 shortly hirsute with spreading once or twice branched sordid hairs ; leaves 

 ovate-oblong, mostly entire, acute or acutish at each end ; fruiting calyx yellow- 

 irh-green, ovoid-pyramidal, 2.5-3 cm. in diameter, scarcely umbonate at base. 

 (P. lanceolata, var. hirta Gray.) — Dry ground, w. Mo. (Bush), and southwestw. 



10. P. Alkekexgi L. (\Vixter Cherry.) Stems subsimple, erect from 

 a creeping perennial rootstock ; leaves thin, green, broadly ovate, entire or 

 angled; flowers 2.5 cm. in diameter; fruiting calyces firm, veiny, scarlet or 

 crimson. — Frequently cultivated for its decorative fruit; said to be escaping 

 locally, as also the doubtfully di.stinct P. Francheti Masters (Chinese Lax- 

 tern Plant), which is annual and has even larger and more showj^ scarlet or 

 crimson fruiting calyces (5 cm. in diameter). (Introd. from e. Asia.) 



11. P. heterophylla Nees. Perennial, diffiLsely much branched and widely 

 spreading or at first erect, puberulent or tomentose, usually viscid ; leaves 

 sometimes oblong, repand or obtusely toothed, acute or obtuse ; corolla 1.5-2.2 

 cm. broad, 5-angled or 5-10-toothed ; anthei"s chiefly yellow. (P. virginiana 

 Man. ed. 6, not Mill.) — Chiefly in sandy or alluvial soil, N. B., southw. and 

 westw. Var. ambigua (Gray) Rydb. Spreading-villous ; anthers chiefly pur- 

 plish. — N. H., southw. and westw. Var. nyctaginea (Dunal) Rydb. Leaves 

 thinner, mostly subentire and acuminate, pubescent chiefly on the veins. — R. I., 

 southw. and westw. 



12. P. longifblia Nutt. Essentially smooth and green, 4-6 dm. high, much 

 branched above ; leaves narrowly lanceolate, attentuate at each end, entire 

 or undulate-dentate ; calyx and peduncles more or less strigillose ; corolla 1-1.5 

 cm. wide. — Bottom lands, etc., la. to S. Dak., and southwestw. 



13. P. subglabrata Mackenzie & Bush. Leaves ovate or ovate-oblong, oblique 

 at base, entire, repand, or sparingly angulate-toothed ; peduncles 1-3 cm. long ; 

 calyx-teeth ovate-lanceolate ; corolla brownish- or violet-spotted in the center; 

 calyx at maturity globose and completely filled by the large reddish or purple 

 berry and open at the mouth. (P. philadelphica Man. ed. 0, but perhaps not 

 of Lam.) — Fertile soil, R. I. to Minn., and southw. 



14. P. virginiana Mill. Erect perennial ; stem 1.5-3 dm. high, villous ; leaves 

 rather narrowly ovate, mostly acutish at each end, subentire or more often with 

 1-5 acutish or rounded teeth on each side, tliinner than in the next species; 



