SOLANACEAE. 321 



lete); anthers 2-celled apically or longitudinally dehis- 

 cent. Ovary entire, 3-5-celled, usually 2-celled; ovules 

 numerous on the axillary placenta; style slender, simple; 

 stigma terminal. Fruit a berry or capsule. 



Fruit a pulpy berry. 



Anthers not connivent; fruiting-calyx inflated. 1. Physalis. 



Anthers connivent; calyx not becoming inflated. 2. Solanum. 



Fruit a nearly dry berry; shrubby. 3. Lycium. 

 Fruit a capsule. 



Capsule prickly; flowers large, showy. 4. Datura. 

 Capsule not prickly. 



Flowers paniculate or racemose. 5, Nicotiana. 



Flowers solitary. 6. Petunia. 



1. PHYSALIS L. Ground-cherry. 



Annual or perennial herbs with entire or sinuately 

 toothed leaves. Peduncles in ours solitary from the 

 axils of the leaves. Calyx campanulate, 5-toothed, in 

 fruit enlarged and bladdery-inflated, membranous, 5- 

 angled or prominently 10-ribbed and reticulate, wholly 

 inclosing the pulpy berry, its teeth mostly connivent. 

 Corolla open-campanulate, or rarely nearly rotate, plicate 

 in the bud. Stamens inserted near the base of the 

 corolla; anthers oblong, opening by a longitudinal slit. 

 Style slender; stigma minutely 2-cleft. Seeds numerous, 

 reniform, finely pitted. 



1. P. ixocarpa Brot. Annual, at first erect, later widely spread- 

 ing, much branched; stem angled, glabrous or the young parts spar- 

 ingly hairy; leaves cordate to ovate, with a cuneate somewhat ob- 

 lique base, sinuately dentate or entire, 2.5-6 cm. long; peduncles 

 2-5 mm. long; calyx sparingly hairy, its lobes short, triangular; 

 corolla bright yellow, with purple throat, 10-15 mm. broad; fruiting 

 calyx round-ovoid, obscurely 10-angled; berry purple. (P. aequata 

 Jacq. f.) 



Frequent in cultivated fields. June-September. 



2. P. greenei Rose. Annual, erect-spreading, the flexuose 

 branches angular, 2-3 dm, long; herbage viscid-pubescent through- 

 out; leaves ovate or rhombic, acutish, entire or with few shallow 

 teeth, 2-3 cm. long, on slender petioles of about the same length; 

 corolla greenish yellow, 12-15 mm. broad; fruiting calyx 10-15 mm. 

 long, pendulous on the slender peduncle, which exceeds it in length. 

 (P. pedunculata Greene.) 



San Joaquin Hills, Orange County; Santa Margarita Ranch, 

 San Diego County. First collected on Cedros Island. April-July. 



22 



