GENUS 2. 



POTATO FAMILY. 



161 



14. Physalis heterophylla Nees. Clammy Ground-Cherry. Fig. 3709. 



Phy sails viscosa Pursh, Fl. Am. Sept. 157. 1814. Not 



L. 1753- 



Physalis heterophylla Nees, Linnaea 6: 463. 1831. 

 Physalis virginiana A. Gray, Syn. Fl. 2 : Part i, 235. 



1878. Not Mill. 1768. 



Perennial from a slender creeping rootstock, ii-3 

 tall, at first erect, later generally decumbent and 

 spreading, viscid and glandular, and villous with 

 long spreading jointed flat hairs; leaves large, blade 

 generally over 2' long, usually broadly cordate, often 

 acute and very rarely with an elongated tip, thick, 

 more or less sinuately toothed, or sometimes suben- 

 tire; calyx long-villous, lobes triangular, generally 

 shorter than the tube; corolla 8"-io" in diameter, 

 greenish yellow with a brownish or purplish center; 

 anthers mostly yellow; berry yellow. 



In rich soil, especially where the surface has been 

 disturbed, New Brunswick to Saskatchewan, Florida, 

 Colorado and Texas. The most common of our species, 

 and includes several races. 



Physalis peruviana L., a native of South America, is cultivated for its fruit and often escapes. 

 It resembles P. heterophylla, but differs in the leaves, which have a long tip, and in the pubes- 

 cence, which is shorter, denser, and not at all viscid. Cape-gooseberry. Strawberry-tomato. 

 Peruvian ground-cherry. Husk-tomato. 



15. Physalis comata Rydberg. Hillside 

 Ground-Cherry. Fig. 3710. 



P. comata Rydberg, Bull. Torr. Club 22 : 306. 1895. 



Perennial, erect, about ii high; pubescence fine 

 and short, that on the calyx, peduncles and upper 

 branches mixed with long white flat jointed hairs. 

 Like P. heterophylla Nees (P. virginiana Gray, not 

 Mill.), but leaves smaller, blade not over 2' long, 

 round-ovate, scarcely at all cordate at the base, about 

 2' long, thin, somewhat repand-dentate, or nearly 

 entire; petioles as long as the leaves; peduncles as 

 long as the fruiting calyx, or longer; corolla green- 

 ish yellow, with brown center, 6"-io" in diameter; 

 fruiting calyx of thin texture, round-ovoid, some- 

 what lo-angled, scarcely sunken at the base. 



Hillsides of Nebraska, Kansas, Colorado and Texas. 

 Rare. 



1 6. Physalis rotundata Rydberg. Round- 

 leaved Ground-Cherry. Fig. 3711. 



Physalis hederaefolia Holzinger, Cont. U. S. Nat. Herb. 



i : 212. 1892. Not Gray. 

 P. rotundata Rydberg, Mem. Torr. Club 4: 352. 1896. 



Diffuse and spreading, zigzag, generally dichoto- 

 mously much branched, from a perennial rootstock, 

 densely and finely viscid-pubescent, usually more 

 glandular than the preceding. Leaves nearly orbicu- 

 lar with more or less cordate base, i'-iS' in diam- 

 eter, with small teeth ; petioles short, more or less 

 winged ; peduncles short, in fruit scarcely more 

 than half the length of the calyx; corolla 8" in 

 diameter, greenish yellow with a brownish center; 

 fruiting calyx ovoid, slightly angled, scarcely sunken 

 at the base. 



Dry plains, South Dakota to Texas and New Mexico. 

 July-Sept. 



