Solanaceae 349 



2. M. spicata L. (SPEARMINT.) Perennial by leafy stolons; 

 herbage glabrous; stems branched, 3-5 dm. high ; leaves lanceo- 

 late, short-petioled or sessile ; whorls of flowers in terminal nar- 

 row, acute, usually interrupted spikes, these becoming 5-10 cm., 

 long in fruit; calyx campanulate, its teeth hirsute or glabrate r 

 subulate, nearly as long as the tube; corolla glabrous. (M. 

 viridis L.) 



Frequent in low ground along streams. August-December. 



Family 85. SOLANACEAE. POTATO FAMILY. 



Herbs, shrubs, vines or rarely trees, with alternate or 

 rarely opposite exstipulate leaves, and perfect regular or 

 nearly regular cymose flowers. Calyx mostly 5-lobed. 

 Corolla varying from rotate to salver-shaped, mostly 

 5-lobed, the lobes induplicate-valvate or plicate in the bud. 

 Stamens as many as the lobes of the corolla and inserted 

 on the tube alternate with them, equal (4 and didynamous 

 in Petunia, the fifth being smaller or obsolete) ; anthers 

 2-celled apically or longitudinally dehiscent. Ovary 

 entire, 3-5-celled, usually 2-celled ; ovules numerous on 

 the axillary placentae ; style slender, simple ; stigma ter- 

 minal. 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 



