ROSACEAE 



507 



Calyx persistent. 



Pistils numerous ; fruit drupelets 1. Rubus. 



Pistils numerous ; fruit an achene 2. Fragaria. 



1. Rubus. Raspberries and Blackberries 



Perennial herbs, shrubs or vines; vine prickly, with alternate leaves, 3-7 

 foliolate or simple ; flowers terminal ; axillary or solitary, white reddish or pink,, 

 usually perfect; calyx S-parted, petals 5, deciduous; stamens numerous; achenes 

 usually many, inserted on the receptacle, which is either fleshy or dry; carpels 

 forming drupelets. About 200 species chiefly Northern. 



Rubus Idaeus L. var. aculeatissimus (C. A. Mey.) Regel & Tiling. Wild 



Red Raspberry 



Stems biennial, upright shrubs covered with straight, stiff bristles, some 

 hooked, and glandular hairs; leaflets 3-5, oblong, ovate, pointed, whitish, downy 

 underneath; petals as long as the sepals, whitish; fruit light red. Spreads by 

 suckers. 



Distribution. The species is native to the Appalachian Mountains as far 

 south as the Carolinas; common at high altitudes in the Rockies. Frequently 



Fig. 268. Wild black cap rasp- 

 Fig 267. Wild Red Raspberry {Rubus Idaeus, var- berry {Rubus occid entails'). This 

 oculeatissimus'). The prickles of the red raspberry produce plant has thorns which are irrital- 

 # mechanical injury. (Ada Hayden). ing- (Ada Hayden). 



