SOLANACEAE 



545 



Pa. Pike, Northampton, Bucks and Chester counties. 



Tertiary, o: Cretaceous, very rare: Older Formations, increasing 

 northward. 117-220 days. Sea level-4,020 ft. 



32. Perilla Aid. 

 1. P. frutescens (L.) Britton. In waste places, escaped from 

 gardens: N. Y. to 111. Native of India. 



Very rare as an escape from gardens near New York and some 

 other places. A variety with crisped leaves, P. frutescens nan- 

 kinensis (Lour.) Britton, has been collected occasionally from the 

 area. 



Sideritis montana L. and Moldavia parviflora (Nutt.) Britton have been collected as 

 Hails in Conn. 



SOLANACEAE 



Fruit a berry; corolla plicate, its lobes generally induplicate. 

 Anthers unconnected; fruiting calyx bladdery-inflated. 

 Fruiting calyx 5-angled and deeply 5-parted. 

 Fruiting calyx 5-lobed, not parted, 10-ribbed. 

 Anthers connivent or slightly connate; fruiting calyx not 

 enlarged. 

 Anthers opening by terminal pores. 

 Anthers longitudinally dehiscent. 

 Fruit a nearly dry berry; corolla campanulate. 

 Fruit a capsule; corolla funnelform. 



Capsule circumscissile towards the top. 

 Capsule opening by valves. 

 Capsule prickly. 

 Capsule not prickly. 



Flowers paniculate or racemose. 

 Flowers solitary. 



Physalodes. 

 Physalis. 



3. SOLANUM. 



4. Lycopersicon. 



5. Lycium. 



6. Hyoscyamus. 



7. Datura. 



8. Nicotiana. 



9. Petunia. 



i. Physalodes Boehm. 

 1. P. physalodes (L.) Britton. In waste places, escaped from 

 gardens: N. S. to Ont., south to Fla. Adventive from Peru. 

 Very rare as a weed in our region. 



2. Physalis L. 



Annuals with branched fibrous roots. 



Fruiting calyx sharply 5-angled, the lobes at flowering time 



lanceolate or acuminate. I. P. pruinosa 



Fruiting calyx obtusely or indistinctly 5-10-angled, the lobes 



at flowering time triangular. 2. P. subglabrata. 



Perennial by rootstocks and roots. 



Leaves broadly ovate, rounded or cordate at the base. 3. P. helerophylla. 



Leaves narrowly ovate, acutish at each end. 4. p. virgmiana. 



36 



