546 SOLANACEAE 



i. P. pruinosa L. In cultivated soil: Mass. to Iowa, Mo. and 

 Fla. 



Rare as a weed in cultivated fields. Has been confused with 

 P. pubescens. 



2. P. subglabrata Mack, and Bush (P. philadelphica Lam. (?)). 



R. I. to Ga., Ky. and Tex. 



In most parts of our area, always as a weed, frequently wanting 

 locally. 



3. P. heterophylla Nees. In rich soil: N. B. to Sask., Fla., Colo. 



and Tex. 



Common as a weed in most parts of our range. The forms 

 known as ambigua and nyctaginea are found with the type. 

 Formerly included in P. viscosa L. 



4. P. virginiana Mill. In rich soil, especially in open places: 



Ont. to Man., Fla. and La. 



Rare, as an adventive, in most parts of our range; often wanting 

 locally. 



The winter-cherry, Physalis Alkekengi L., the tomatillo, P. ixocarpa Brot. and the 

 Strawberry-tomato, P. peruviana L. have ali been collected as waifs. Physalis angulata 

 L. has been collected near Hartford, Conn., and is recorded from N. J., otherwise 

 unknown. 



3. Solanum [Tourn.] L. 



Glabrous or pubescent herb, not jirickly. I. 5. nigrum. 

 Stellate-pubescent and prickly herbs. 



Berry not enclosed by the calyx; perennial. 2. 5. carolinense. 



Berry invested by the spiny calyx; annuals. 3. S. rostratum. 



Climbing vine, not prickly; leaves hastate or 3-lobed. 4. 5. Dulcamara. 



1. S. nigrum L. In waste places or cultivated soil: N. S. to 



N. W. Terr., Fla. and Tex. 



Throughout the range as a weed, except in the pine-barrens. 



2. S. carolinense L. In dry fields and in waste places: Ont. to 



Mass., Fla., 111., Neb. and Tex. 



Rare as an adventive weed in most parts of the range. 



3. S. rostratum Dunal. Occasional in waste places as a weed: 



Ont. to N. H., Mass. and N. J. Adventive from the 

 west. 



Rare as an adventive weed; more common in Conn, than else- 

 where. 



