BLACK OR DARK PURPLE 189 



high. It is stiff and armed with stout prickles. 

 It favors sandy soil. 



Of the High-bush Blackberries, Bailey makes 

 three divisions : Ruhits nigrohaccus, Rubus ar- 

 gutus, and Rubus Canadensis. Professor Porter 

 also describes another form which Bailey is in- 

 clined to accept as a separate one, Rubus Alle- 

 gheniensis, or Mountain Blackberry. 



COMMON OR HIGH-BUSH BLACKBERRY 

 Rubus nigrobaccus. Rubus villosus Rose Family 



Fruit — These so-called berries are oblong, 

 seedy, firm, and sweet. They grow in long 

 loose clusters, the lower berries usually ripening 

 first. The ^yq long, narrow calyx lobes are 

 reflexed at the base. July, August. 



Leaves, — The leaflets are three or five in 

 number. Each has a distinct stem, the terminal 

 one having the longest stalk. The leaflets are 

 ovate, pointed, and coarsely serrate. The under- 

 leaf surface is hairy and glandular. 



Floioers. — The large white flowers are borne 

 in long clusters. Each pedicel is long and forms 



