FLORA OF THE UPPER SUSQUEHANNA. 79 



S. niirrum L. Common NninrsnADE. Black. NKinrsnADK. Rare. 

 Hig Island, Chemung river; waste ground, Elmira. Lucv. 

 Binghamton, MUhpaugh. Barton, Fenno. Oxford, Co7'illt-. 



S. rostratum Dunal. Bk.akkdSoi.amm. Very rare. Cultivated 

 ground, Susquehanna; apparently increasing, Graves. Ex- 

 ceedingly prickly, leaves pinnatitid. The original food plant of 

 the potato bug. 



PHYSALIS L. 



P. pubescens L. Ground Cherry. Strawberry Tomato. Rare, 

 Lucy. Infrequent, Fenno. Found in cultivated fields and 

 waste places, not common ; Clute. Elsewhere not reported. 

 Corolla yellowish with brown-purple centre. 



P. Virginiana Mill. Ground Cherry. AVaverly, Graves. Ox- 

 ford, Coville. Fitch's Bridge and along Baldwnn Creek, Lucy. 

 This plant is properly P. heterophylla of Nees. 



The apple of Peru {Physalodes physalodes), which belongs 



in this order, is sometimes found as an escape. It does not 

 persist. 



LYCIUM L. 



L. vulgare (Ait. f.) Dunal. Matrimony Vine. In cultivation. 

 Not uncommon about old dwellings, fences, etc. Occasionally 

 escapes and shows a tendency to become naturalized. 



DATURA L. 



D. Stramonium L. Jimson-weed. Thorn-apple. Rare. Found 

 in waste grounds. Not reported from Delaware county. A 

 rank, ill-scented weed, \vith showy, funnel-shaped, white blos- 

 soms, and globular, prickly, seed-capsules. 



The potato, egg-plant, tomato and tobacco belong to this 



family. 



SCROPHULARIACE>e. 



VERBASCUM L. 



V. Thapsus L. Common Mullein. Common in dry soil, along 

 roadsides, etc. Well known. Its presence is usually an indica- 

 tion of sterile soil. 



