RUBUS 11'^ 



e. Prickles abundant, hooked or 

 bent or at least broad-based 



f. Panicle-vestiges glandular 



(Copsy Highbush Blackberries: 



R. allegheniensis Porter, 



Fig. 148, etc) 

 f. Panicle-vestiges not glandular 



(Field Highbush Blackberries: 



R. argutus Link, etc. ) 



b. Canes trailing on the ground 



c. Canes hispid or bristly ( Groundberries: 



R. hispidus L . , Fig. 148, etc. ) 

 c. Canes prickly rather than exclusively 



bristly (Dewberries: R. flagellaris 



Willd.,etc.) 



1. R^ odoratus L. Purple Flowering Raspberry. Stems 

 shrubby, unarmed but more or less bristly, 1-2 m.high; bark 

 shredding. Rocky places, Cuebec and Ontario, south in the moun- 

 tains to Georgia and Tennessee (Fig. 143). 



2. R. phoenicolasius Maxim. Wineberry . Stems biennial, 

 long and curving, rooting at the tips, beset with long red -brown 

 glandular hairs and weak, nearly straight prickles. Introduced 

 from Asia, originally cultivated, now extensively naturalized 

 (Fig. 144). 



3. R^ strigosus Michx. Wild Red Raspberry. (R. idaeus L. 

 var. strigosus (Michx. ) Maxim. ). Stems shrubby, 1-2 m. high, 

 densely clothed with weak glandular bristles, or the older stems 

 with small hooked prickles. Thickets, Labrador to British Colum- 

 bia, south to West Virginia, Wisconsin, Nebraska, and Wyoming 

 (Fig. 145). 



4. R. occidentalis L. Black Raspberry . Blackcaps. Stems 

 very glaucous, recurved, often rooting at the tip, sometimes 

 3-4 m. long, sparingly armed with small hooked prickles. Rich 

 thickets, Quebec to Minnesota, south to Georgia and Colorado 

 (Fig. 146). 



ROSA L. (Rosaceae) 



Deciduous shrubs, mostly prickly, erect, climbing or scram- 

 bling. Shoots moderate, rounded; pith relatively large, brown. 



