SOLANACEAB 275 



Calyx-lobes broadly triangular : pedicel scarcely as long as the flower. 



3. P. ixocarpa. 

 Calyx-lobes triangular-lanceolate : pedicel longer than the flower. 



4. P. Philadelpkica. 

 Plants perennial by rootstocks and roots. 



leaves glabrous. 4. p. Philadelphica. 



Leaves pubescent. 

 Stem strigose with flat hairs. ^ 5. P. Virginiana, 



Stem clammy-pubescent with spreading hairs. 6. P. heterophylla. 



1. Physallfl pruinosa L. Tai,i, Hairy Ground-cherry. (Man. p. 

 810 ; I. F./. 3igi.) In cult, soil, Mass. to Iowa, Mo. and Fla. — Pennsyl- 

 vania : Lancaster. 



2. Fhysalis Barbadeosls Jacq. Barbadoes Ground-cherry. (Man. 

 p. 810; I. F./. 3192.) Sandy soil, N. C, southern 111. and Mex., the W. 

 Indies and S. Am. — Pennsylvania : Ai,i<egheny. 



3. Physalis ixocarpa Brot. Mexican Grounjd-Cherry. Straw- 

 berry Tomato. (Man. p. 811 ; I. F./. 3196.) In waste places, locally 

 eastward. Native of Mex. — Pennsylvania : Phuadelphia. 



4. Physalis Philadelphica Lam. Phii<adelphia Ground-cherry. 

 (Man. p. 811 ; I. "P.f. 3197-) In rich soil, R. I. to Ga., Neb. and Tex. — 

 Pennsylvania: Monroe ; Northampton ; Lancaster ; Franki,in. 



5. Physalis Virginiana Mill. Virginia Ground-cherry. (Man. p. 

 811 ; I. F./. 3202.) Rich soil and open places, N. Y. to Man., Fla. and 

 La. — Pennsylvania : Monroe ; Northampton; Bucks ; Dei,aware ; 

 Chester ; Phii,adei<phia ; York ; Lancaster ; Franklin ; Ci,arion ; 

 Erie. 



5a. P. Virginiana intermedia Rydb. (Man. p. 812.) Northampton. 



6. Physalis heterophylla Nees. Ci,ammy Ground-cherry. (Man. 

 p. 812; I. F.y. 3203.) In rich soil, N. B. to Saskatchewan, Fla., Colo, 

 and Tex. — Pennsylvania : Northampton ; Bucks ; Phii^adelphia ; 

 Dei,aware ; Chester ; Lancaster ; Franklin ; Bedford ; Hunting- 

 don ; Luzerne; Erie. 



6a. P. heterophylla ambigua (A. Gray) Rydb. (Man. p. 812.) 

 Monroe ; Allegheny. 



3. SOLANUM L. 

 Upright or spreading herbs. 

 Plants glabrous or simply pubescent, not prickle-armed, i. 5. nigrum. 

 Plants stellate-pubescent, prickle-armed. 

 Berry not enclosed in the calyx : perennial species. 2. S. Cafolinense. 

 Berry enclosed in the accrescent calyx : annual species. 3. S. roslraium. 

 Climbing vine. 4. .S. Dulcamara. 



1. Solanum nigrum L. Black or Garden Nightshade. ( Man. 

 p. 814; I. F.y. 3211.) In waste places or cult, soil, N. S. to the N. W. 

 Terr., Fla. and Tex. — Pennsylvania : Northampton ; Bucks ; Phila- 

 delphia ; DELAWARE ; Chester ; Lancaster ; Franklin; Alle- 

 gheny. 



2. Solanum Carolhiense L. Horse-nettlE. (Man. p. 814 ; I. F. /. 

 3213.) In dry fields and in waste places, Ont. to Mass., Fla., 111., Neb. 



