Genus 4. 



POTATO FAMILY. 



163 



1. Leucophysalis grandiflora (Hook.) 

 Rydberg. Large White Ground- 

 Cherry. Fig. 3714. 



P. grandiflora Hook. Fl. Bor. Am. 2: 90. 1834. 

 Leucophysalis grandiflora Rydberg, Mem. Torr. 

 Club 4 : 366. 1896. 



Erect, tall, ii-3 high; stem somewhat 

 angled, striate, more or less villous. Leaves 

 large, 4'-8' long, ovate to lanceolate-ovate, 

 generally acute and entire, somewhat decur- 

 rent on the petiole, more or less villous and 

 viscid, especially on the veins of the lower 

 surface; peduncles several from each axil, 

 '-!' long, villous; calyx villous, its lobes 

 lanceolate, equalling the tube; corolla large, 

 H'-ii' in diameter, rotate, white with a more 

 or less yellowish center; filaments slender; 

 anthers short, yellow, often tinged with pur- 

 ple ; fruiting calyx ovoid, early filled by the 

 berry. 



Sandy soil, Quebec to Saskatchewan, Mich- 

 igan and Minnesota. May-July. 



5. CHAMAESARACHA A. Gray, Bot. Cal. 1 : 540. 1876. 



Perennials, with entire to pinnatifid leaves, the blades decurrent on the petioles. Peduncles 

 solitary, or in fascicles of 2-4 in the axils. Calyx campanulate, 5-lobed, in fruit somewhat 

 enlarged, but not bladdery-inflated, close-fitting to the berry, thin, not angled nor ribbed, and 

 faintly if at all veiny, open at the mouth, not exceeding the berry. Corolla rotate, white or 

 cream-colored, often tinged with purple, the limb plicate. Stamens inserted near the base 

 of the corolla; filaments long and slender; anthers oblong, opening by longitudinal slits; 

 style and stigma as in Physalis. Seeds kidney-shaped, flattened, rugose-favose or punctate. 

 [Ground--Sara<-/ia, the latter a genus named in honor of Isidore Saracha, a Spanish Bene- 

 dictine botanist.] 



An American genus, consisting of half a dozen species, natives of Mexico and the south- 

 western United States. Type species: Chamaesaracha Coronopus (Dunal) A. Gray. 



Pubescence dense, puberulent and hirsute. 1. C. conioides. 



Pubescence sparse, puberulent or stellate, hirsute (if at all) only on the calyx. 2. C. Coronopus. 



i. Chamaesaracha conioides (Moricand) Brit- 

 ton. Hairy Chamaesaracha. Fig. 3715. 



Solatium conioides Moric. ; Dunal in DC. Prodr. 13: Part 



1, 64. 1852. 

 Withania (?) sordida Dunal, loc. cit., 456. 1852. 

 Chamaesaracha sordida A. Gray, Bot. Cal. 1: 540. 1876. 

 Chamaesaracha conioides Britton, Mem. Torr. Club 5: 



287. 1895. 



Much branched from a perennial base, at first up- 

 right, at length spreading, cinereous-puberulent with 

 short branched somewhat glutinous or viscid hairs, 

 generally also viscidly hirsute or villous with long and 

 branched hairs, especially on the calyx; leaves oblan- 

 ceolate to obovate-rhombic, usually acutish and taper- 

 ing into a short petiole, generally deeply lobed, but 

 varying from subentire to pinnatifid; calyx-lobes tri- 

 angular, generally acutish ; corolla about 4' in diam- 

 eter, white, cream-colored or sometimes violet-pur- 

 plish ; berry 2*"-4" in diameter. 



In dry clayey soil, southern Kansas to California and 

 Mexico. May-Sept. 



