266 SYSTEMATIC BOTANY. 







3. Datura. Calyx tubular, ventricose, 5-angled, 5-toothed. Co- 

 rolla funnel-form, with a long-cylindrical tube ; limb plaited, 5-parted. 

 Stigma 2-lipped. Capsule globular, prickly, 2-celled, 2-valved. Seeds 

 large. (T) 



D. STRAMONIUM (Thorn Apple}. Smooth; stem erect, fleshy, hollow, 

 sometimes spotted with purple ; leaves large, ovate, irregularly dentate ; 

 flowers large, 2'-^' long, dull white ; calyx-teeth acuminate ; fruit of the size 

 and shape of a hen's egg, covered with short, sharp spines. Poisonous weed, 

 in waste grounds, 1-3 feet high. 



4. Nicandra. Calyx 5-cleft, 5-angled ; angles compressed. Seg- 

 ments sagittate, enlarged in fruit. Corolla campanulate ; border open, 

 plaited, nearly entire. Stamens 5, converging. (T) 



N. PHYSALOIDES (Apple of Peru). Smooth, herbaceous ; stem erect, 

 branching ; leaves large, broad-ovate ; flowers axillary, terminal, solitary, 

 pale blue, white in the center, with 5 blue spots ; calyx closed, with the 

 angles very acute. In gardens, 2-5 feet high. August. 



5. Physalis. Calyx 5-cleft, persistent, reticulated, inflated after 

 flowering. Corolla spreading, campanulate, with a very short tube ; 

 limb obscurely 5-lobed. Stamens 5, converging. 



P. VISCOSA ( Yellow Henbane). Viscid-pubescent, branching, herba- 

 ceous ; leaves ovate, or lance-ovate, cordate or tapering at base, repandly 

 toothed, or entire ; flowers nodding ; corolla greenish-yellow, with 5 brown- 

 ish spots at the base inside ; fruit yellow or orange-color, inclosed in the in- 

 flated, angular calyx. Dry hills, a foot high. July- August. 



6. Capsicum. Calyx erect, 5-parted, persistent. Corolla rotate ; 

 tube very short ; limb plaited, 5-lobed. Stamens converging. Cap- 

 sule dry, inflated, 2-3-celled. Seeds flat, extremely acrid. 



C. ANNUUM (Red Pepper). Smooth ; stem herbaceous, angular, branch- 

 ing above ; leaves ovate-acuminate, petiolate, entire ; flowers nodding ; calyx 

 angular, with 5 short, acute lobes ; corolla white, lobes spreading ; fruit 

 oblong, red to yellow. Cultivated, 1-2 feet high. 



7. Solanum. Calyx mostly 5-parted, spreading, persistent. Co- 

 rolla usually rotate ; tube very short ; limb mostly 5-cleft, plaited in 

 the bud. Filaments very short. Anthers opening at top by 2 pores. 



1. S. DULCAMARA (Bitter-sweet}. Stem shrubby toward the base, climb- 

 ing, more or less smooth ; leaves ovate-cordate, hastate ; flowers in corym- 

 bose clusters ; corolla dull purple, the segments reflexed ; berries oval, scar- 

 let, poisonous. In moist thickets, 4-6 feet long. July. 



2. S. NIGRUM (Nightshade}. Smooth, herbaceous ; stem very branch- 

 ing, with rough angles ; leaves ovate, toothed and undulate ; flowers small, 

 white, in drooping, lateral umbels ; anthers yellow ; berry globular, black. 

 In waste grounds. July-August. (T) 



3. S. TUBEROSUM (Potato}. Rhizoma producing tubers ; stem ascend- 



