Jan., 1914.] Solanacece of Ohio. 237 



Datura L. 



Large narcotic herbs, or rarely shrubs or trees. Leaves 

 petioled, alternate; flowers large, solitary, erect, short-peduncled 

 and white, purple or violet; calyx elongated-tubular or prismatic, 

 5-cleft; corolla funnelform, 5-lobed, the lobes plicate, broad, acumi- 

 nate; stamens included or little exserted, with long, filiform 

 filaments, united with the corolla tube to about the middle. 



1. Leaves entire, calyx tubular. D. metel. 



1. Leaves lobed and angled, calyx prismatic, flowers white to purple. 



D. stramonium. 



1. Datura metel L. Entire-leaf Jimson-weed. Annual; 

 finely glandular-pubescent, 3 to 9 feet high. Leaves broadly 

 ovate, acute, inequilateral, rounded or subcordate at the base; 

 flowers white, corolla about twice the length of the calyx; capsule 

 nearly globose, obtuse, prickly and pubescent. Lake county. 

 From tropical America. 



2. Datura stramonium L. Common Jimson-weed. Annual, 

 glabrous or the young parts minutely pubescent. Stem stout; 

 leaves ovate, acute or acuminate, often with a tinge of purple, 

 irregularly sinuate-lobed, the lobes acute; flowers white or violet; 

 calyx prismatic; capsule ovoid, prickly. General. Naturalized 

 from the tropics. 



Lycium L. 



Shrubs or woody vines, with small leaves and with smaller 

 ones in fasicles in the axils. Flowers white, greenish or purple, 

 solitar}^ or in clusters; calyx campanulate, 3 to 5-lobed; corolla 

 tube short or slender, the limb 5-lobed (rarely 4-lobed), the lobes 

 obtuse; stamens 5, (rarely 4) filaments filiform. 



1. Lycium halmifolium Mill. Matrimony-vine. Glabrous, 

 with thorns or unaraicd. Leaves lanceolate, oblong, or spatulate, 

 with short petioles; stem slender, climbing or trailing; thorns when 

 present slender; calyx lobes ovate; corolla purplish, changing to 

 greenish; stamens slightly exserted; berry oval, orange-red. 

 Rather general. From Europe. 



Physalodes Boehm. 



Annual, erect, glabrous herbs. Leaves alternate, petioled, 

 sinuate-dentate or lobed; flowers large, solitary, light-blue, 

 nodding; calyx -segments ovate, connivent, cordate or sagitate at 

 the base, netted-veined ; corolla broadly campanulate, slightly 5- 

 lobed; stamens 5, included, united with the base of the corolla. 



1. Physalodes physalodes (L.) Britt. Apple-of-Peru. Plant 

 18 to 45 inches high with angled stem. Leaves ovate or oblong, 

 acuminate but blunt, narrowing into a long petiole; limb of corolla 

 almost entire; segments of the fruiting-cah'x temiinating in 

 cusps, loosely surrounding the berry. Hamilton, Clinton, Clark, 

 FrankHn, Licking, Gallia, Montgomery, Champaign. From 

 Peru. 



