SOLANACEAE. 301 



Pubescence sparse, consisting of flat, sometimes jointed hairs, scarcely viscid. 

 Fruiting calyx ovoid, scarcely angled and scarcely sunken at the base ; 



leaves thick, oblanceolate or spatulate to rhombic, subentire. 

 Leaves oblanceolate or spatulate ; hairs all simple. 

 Pubescence very short ; leaves narrowly oblanceolate. 



5. P. polyphylla. 



Pubescence long ; leaves spatulate. 6. P. lanceolata, 



Leaves broader, often rhombic ; hairs on the lower surface branched. 



7. P. pumila. 

 Fruiting calyx pyramidal-ovoid, obtusely s-angled and deeply sunken at the 



base ; leaves ovate to lanceolate, generally more or less toothed. 



8. P. virginiana. 

 Pubescence dense, viscid, partly of fine and short, partly of long flat 



jointed hairs. 

 Leaves large ; blades over 5 cm. long, more or less cordate ; long flat 



hairs numerous. 9- P- heterophylla. 



Leaves smaller ; blades less than 5 cm. long ; long flat hairs few, mostly 



confined to the calyx. 

 Plant erect or ascending. 



Leaf-blades reniform or rounded cordate, coarsely sinuately toothed. 



10. P. hederaefolia. 



Leaf-blades rounded ovate or rhombic. n. P. comata. 



Plant prostrate, diffuse ; leaf-blades nearly orbicular. 



12. P. rotitndata. 

 Pubescence fine, grayish, at least in part stellate. 13. P. Fendleri. 



1. Physalis pruinosa L. In cultivated soil, from Mass, and Iowa to Fla. 

 and Mo. ; introduced in Colo. Ft. Collins. 



2. Physalis neo-mexicana Rydb. (P. pubescens Coult. ; not L.) In loose 

 soil from Colo, to N. M. and Ariz. Alt. about 6000 ft. Colorado Springs. 



3. Physalis subglabrata Mack. & Bush. In river valleys and cultivated 

 grounds from Ohio and Mont, to Pa. and Colo. Alt. up to 7000 ft. Dome 

 Rock in Platte Canon. 



4. Physalis longifolia Nutt. (P. lanceolata lacvigata A. Gray) In river 

 valleys and rich soil from Iowa and Mont, to Ark. and Ariz. ; also in Mex. 

 Alt. 4000-8000 ft. Gunnison ; Berkeley Lake, Denver ; Pueblo ; Ft. Collins ; 

 Boulder. 



5. Physalis polyphylla Greene. On plains of Colorado. Walsenburg; 

 Piedra. 



6. Physalis lanceolata Michx. On plains and prairies from Ills, and S. D. 

 to S. C. and Ariz. ; also in Mex. Alt. 4000-6000 ft. Ft. Collins ; Colorado 

 Springs ; Boulder. 



7. Physalis pumila Nutt. (P. lanceolata hirta A. Gray) Prairies and 

 river valleys from Mo. and Colo, to Tex. Alt. 4000-7000 ft. La Veta; Sul- 

 phur Spring, Soldier Canon. 



8. Physalis virginiana Mill. (P. lanceolata A. Gray, in part; not Michx.) 

 On prairies, in river valleys and cultivated ground from N. Y., Mich, and 

 Mont, to Fla. and Tex. Alt. 4000-8000 ft. Boulder Canon ; between Sunshine 

 and Ward. 



9. Physalis heterophylla Nees. (P. virginiana A. Gray; not Mill.) In culti- 

 vated fields and sandy or loose soil from N. B. and Sask. to Fla., Tex. and 

 Utah. Alt. 4000-6000 ft. Timnath, Larimer Co. ; Red Rock Canon ; New 

 Windsor, Weld Co. ; foot-hills, Larimer Co. ; gulch west of Pennock's ; 

 Dixon Canon; Howe's Gulch; Ft. Collins; Boulder; Longmont. 



