Class XII. Order V. 



oval, thick, and tough, dark green above, whitish and downy 

 underneath. Flowers small, blue, inclining to purple, in long 

 conical bunches on the end of the stems. July, August. 



POLFGYNtil. 



150. ROSA. 

 ROSA CAROLINIANA. L. Swamp rose 



Germs globular, hispid; peduncles somewhat 

 hispid; stem with stipular prickles; petioles prick- 

 ly. L. 



This rose grows in swamps and wet grounds, sometimes 

 forming thickets of itself. The stems vary greatly in the num- 

 ber and size of their prickles, even those which spring from the 

 same root. They are commonly of a reddish colour, and their 

 prickles nearly straight. Leaves pinnate, with five or seven 

 pair of oval leafets, sharply serrate and paler on the under side. 

 Flowers red, growing in a sort of corymbs. Fruit spherical, 

 flattened at the ends. June, July. 



151. RUBUS. 

 RUBUS OCCIDENTALS. L. Black raspberry. Tliimbleberry, 



Leaves trifoliate, downy underneath, stem prick- 

 ly, petioles round. L. 



Frequent about fences, thickets, Sec. The stems are prick- 

 ly, long and slender, bending over in the form of an arch, and 

 covered with a bluish or glaucous powder, which readily rubs 

 off. Leafets in threes, oval, loosely serrate, acuminate, green 

 above, whitish and downy underneath, the two lateral ones near- 

 ly sessile. Petioles roundish, prickly. Flowers white, in ter- 

 minal racemes. Fruit black, sprightly and pleasant to the taste. 

 May. 



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