312 



BUSH-FRUITS 



10. R. ARCTICUS, Linn. 



Stem low, herbaceous, sometimes dioecious, slightly pubescent, 

 mostly erect, 1-2-flowered; leaves trifoliolate ; leaflets rhombic- 

 ovate or obovate, coarsely and often doubly serrate, slightly petio- 

 late; flowers rose - colored, %-l inch (12-25 mm.) broad; calyx 

 slightly pubescent, sepals lanceolate, sometimes slightly dilated at 

 the tip, nearly as long as the petals; petals obovate to oblanceo- 

 late; fruit amber- colored, pleasant (Fig. 54). 



VAR. GRANDIFLORUS, Ledeb. Stem shorter, leaflets more 



Fig. 54. 

 Rubus arcticus (XI). 



rounded, lateral ones sessile; petals larger, obovate, oblong; 

 sepals narrower, often much elongated. 



Distribution. Northern countries of the three continents. In 

 America it occurs in the Eocky Mountain and Pacific, but not in 

 the Atlantic alpine region. 



