THE BOOK OP ROSES. 393 



Branches, smooth, sarmentous ; armed with two stipu- 

 lary thorns at the base of the leaves, and a few 

 others scattered. 



Stipules, subulate. 



Leafstalks, glandulous, armed beneath with crooked 

 thorns. 



Leaflets, three or five ; oval, usually pointed ; smooth 

 of a light green on the upper surface, pale and 

 glaucous underneath, much nerved ; the teeth 

 sharp and simple. 



Flowers, appearing in July, in multifloral clusters, 

 sometimes solitary ; red or pale pink ; the petals 

 large and ob-corded. 



Sepals, very narrow, with a sharp point, often pinna- 

 tifid; cottonous, and covered on the edges with 

 bristles resembling the beard of a feather. 



Floral leaves, narrow, opposite, lanceolated, acumi- 

 nated, often curved; smooth, and ciliated with 

 glands. 



Flowerstalks, long, covered with bristles above the 

 floral leaves, glaucous and smooth underneath. 



Styles, twice as long as the tube of the calyx ; united 

 in a smooth column, to the number of fifteen or 

 twenty. 



Stamens, numerous, long, curved inwards. 

 Fruit, naked, globular. 



This rose is a native of North -America ; but is 

 susceptible to frost when cultivated in Europe. 



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