314 SOLANACEAE. 



Stachys pubens (Gray) Heller. (S. emersoni Piper.) Sparsely pubescent; 

 stems erect, about 1 m. high, retrosely hispid on the angles; leaves thin, ovate, 

 obtuse, cordate or subcordate at base, coarsely crenate, sparsely-pilose on both 

 sides, 6-7 cm. long; petioles hirsute; flowers in a leafy-bracted spike, or the 

 lower in the axils of ordinary leaves; calyx campanulate, the deltoid cuspidate 

 teeth ciliate; corolla red, bearded in the throat, the lower lobes white-spotted. 



In swampy places near the ocean coast. 



Family 89. SOLANACEAE. Nightshade Family. 

 Herbs or shrubs, commonly rank-scented, with colorless juice; 

 leaves alternate, without stipules; flowers regular, 5-merous, 

 solitary or in cymes, on bractless pedicels; calyx mostly S-lobed; 

 corolla gamopetalous, mostly 5-lobed, usually plaited in the bud ; 

 stamens as many as the corolla-lobes and alternate with them; 

 style 1; ovary entire, superior, 2-celled, becoming a many-seeded 

 capsule or berry; endosperm fleshy. 



Corolla rotate; fruit a berry. 439. Solanum, 314. 

 Corolla funnelform to salverform; fruit a capsule. 



Flowers solitary. 440. Datura, 314. 



Flowers in racemes or panicles. 441. Nicotiana, 315. 



439. SOLANUM. Nightshade. 



Herbs or shrubs; calyx and rotate corolla 5-parted or cleft, the 

 latter plaited in the bud; stamens epipetalous, exserted; filaments 

 very short; anthers converging; styles elongated; ovary 2-celled, 

 rarely more; fruit a berry. 



Solanum nigrum L. Nightshade. Annual, glabrous or somewhat pubes- 

 cent, usually branched, 15-30 cm. high; leaves ovate or triangular, acute or 

 obtuse, cuneate at base, sinuately toothed or rarely entire, 1-4 cm. long; 

 petioles shorter than the blades; flowers in lateral peduncled small cymes; 

 calyx-lobes obtuse; corolla white, deeply 5-cleft, the lobes spreading; berries 

 globose, black. 



In waste places, introduced ; but perhaps also native on lake and river banks. 



440. DATURA. 



Rank narcotic-poisonous annual or perennial weeds, erect, 

 tall, branching; leaves alternate, petioled, ovate; flowers large, 

 showy, solitary on short peduncles in the forks of the stems; 

 calyx prismatic, 5-toothed, deciduous; corolla funnelform, with 

 a 5-10-toothed plaited border; fruit a globular prickly 4-valved 

 2-celled capsule; seeds rather large, flat. 



Datura stramonium L. Jamestown or Jimson Weed. Annual, glabrous or 

 nearly so, green, 30-90 cm. high; leaves ovate, acuminate or acute, coarsely 

 toothed or lobed, usually narrowed at base, petioled, 6-20 cm. long; calyx-tube 

 5-angled, not half as long as the white corolla, this 6-10 cm. long; capsule 

 ovoid, densely prickly, the lower prickles usually shorter. 



Sparingly introduced. 



