324 SOLANACE^B. (NIGHTSHADE FAMILY.) 



ovoid, purple. Waste ground around homesteads. May -Oct. Leaves 

 l'-2' long. Fruiting calyx l'-l|' long. 



*- -i- Corolla yellow, 7" -10" broad. 



4. P. Philadelphia, Lam. Smoothish; stem 2 -3 high, the branches 

 sharply angled ; leaves ovate or ovate-lanceolate, acuminate, wavy or toothed 

 on the margins, tapering and very unequal at the base ; pedicels as long as the 

 petioles; calyx lobes acuminate; fruiting calyx open, globular, 1' thick. 

 Cultivated ground, Georgia, Tennessee, and northward. July - Sept. 



* * Perennial. 



*- Flowers solitary. 



** Pubescence, if any, stellate or branching. 



5. P. angUStif Olia, Xutt. Smooth or nearly so ; stem low, erect or 

 at length diffuse ; leaves linear to oblong, obtuse, entire ; calyx lobes short, 

 triangular-ovate, obtuse, tomentose on the margins ; corolla brownish purple 

 in the throat ; fruiting calyx round-ovate, depressed at the base. Low sandy 

 places along the coast, Florida, and westward. July -Sept. Stem 6' -12' 

 high. Leaves 2' -5' long, somewhat fleshy. Corolla 9" -12" broad. Fruit- 

 ing calyx 9" - 12" long. Anthers yellow. 



6. P. viscosa, L. Closely pubescent, with short white stellate or branch- 

 ing hairs ; stem ascending from a slender subterranean base ; leaves from ovate 

 to spatulate-oblong, entire, or wavy on the margins ; corolla greenish yellow, 

 brownish in the throat ; fruiting calyx globose-ovate ; berry yellow, viscid. 

 Sandy coast, Florida to North Carolina. July -Sept. Leaves l|'-3' long. 

 Corolla 8" -9" broad. 



- 1 - 1 - *+ Pubescence simple. 



7. P. lanceolata, Michx. Pubescent ; leaves ovate-lanceolate or ob- 

 long, obtuse, entire, or coarsely toothed, acute and commonly very unequal at 

 the base ; calyx pubescent, the lobes long-acuminate from an ovate base ; co- 

 rolla yellow in the throat ; fruiting calyx conical-ovate, 5-anglecl. Dry sandy 

 soil. July - Oct. Stem 1 high, erect or diffuse. Leaves 1' - 2' long. Fruit- 

 ing calyx l'-iy long, smooth or hairy. 



8. P. arenicola, Kearney. Pubescent or hairy; root slender, elon- 

 gated ; stem erect, at length diffusely branched ; leaves ovate, entire or angu- 

 larly toothed, rounded or cordate at the base ; calyx hairy ; corolla pubescent, 

 brown in the throat; style and filaments purple; anthers yellow; fruiting 

 calyx oblong-ovate, sharply 5-angled, concave at the base ; berry globose. 

 Dry sandy coast, Florida. July - Sept. Stem 1 high. Fruiting calyx 

 V long. 



9. P. heterophylla, Nees. Densely villous with viscid jointed hairs ; 

 stem stout, at length diffusely branched; leaves broadly cordate, acute, an- 

 gularly toothed ; calyx teeth shorter than the tube ; corolla brownish in the 

 throat; anthers yellow; fruiting calyx ovate, 5-angled, hirsute. Dry soil, 

 chiefly in the upper districts. June -Sept. Stem 1-1 high. Leaves 

 2' -4' long. Corolla 6" - 8" broad. Fruiting calyx 1'- H' long. 



Var. nyctaginia, Rydberg. Leaves oftener entire, acute at the base, 

 acuminate. With the type. 



