204 ELEMENTS OF BOTANY. 



VI. MONARDA. 



Annual or perennial herbs ; stem usually tall ; leaves den- 

 tate or serrate ; whorls capitate and axillary, dense-flowered : 

 calyx tubular, bearded in the throat, nearly equally 5-toothed ; 

 corolla nearly equally 2-lipped, the upper lip entire or emar- 

 ginate, lower lip spreading, o-lobed ; perfect stamens 2, ex- 

 serted, abortive stamens 2 ; nutlets smooth. 



1. M. FisTULOSA L. Wild Bkrgamot. Perennial, aromatic; 

 stem erect, slender, branched, pubescent, 2-4 ft. high; leaves ovate 

 to lanceolate, acuminate at the apex, rounded at the base, sharply 

 serrate, petioled ; whorls terminal, subtended, by several conspicuous 

 white or pale purple bracts ; calyx curved, densely hairy in the throat, 

 teeth subulate ; corolla pink to purple, slender, li in. long, upper lip 

 pubescent, entire. June-September. Dry hills and woods. 



2. M. PUNCTATA L. Horse Mint. Perennial ; stem stout, 

 pubescent, much branched, 2-3 ft, high ; leaves lanceolate to oblong, 

 acute at each end, slightly serrate, short-petioled ; whorls axillary 

 and terminal, bracts ovate to oblong, purplish ; calyx slightly hairy 

 in the throat, teeth acute ; corolla yellowish, 1 in. long, the upper 

 lip pubescent, notched, the lower spotted with brown or purple. 

 June-October. On dry soil. 



111. SOLANACE^. POTATO FAMILY. 



Herbs or shrubs; juice often narcotic-poisonous; leaves 

 alternate, exstipulate ; flowers perfect, regular, axillary and 

 solitary, or cymose ; calyx usually 5-toothed or 5-cleft, per- 

 sistent, often becoming much enlarged in fruit ; corolla 5-10- 

 lobed, rotate to salver-form or tubular, the lobes often folded 

 and convolute in the bud; stamens inserted in the tube of 

 the corolla and alternate with its lobes ; ovary 2-5-celled, 

 style and stigma single ; fruit a 2-5-celled, many-seeded cap- 

 sule or berry. 



I. PHYSALIS. 



Annual or perennial herbs ; stems diffusely branched ; 

 leaves petioled, entire or toothed ; flo\vers axillary, solitary, 

 nodding; calyx 5-tootlied, becoming 5-angled, much enlarged 



