THE BOOK OF ROSES. 289 



21. Hessian Full-purple Rose. 

 Thorns, straight, insterspersed with glandulous thorns. 

 Leaflets, five or seven, oval, oblong, glaucous under- 

 neath, and glandulous on the mid-rib. 

 Tube of calyx, oval, pyriform, smooth at the summit. 

 Flowers, full, middle-sized ; of a pink purplish lilac. 



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II. Rosa Pulverulenta. 

 Powdery Rose. 

 Rosa Prcecox. 

 Rosa Pruinosa. 



Shrub, stiff, not very high. 



Thorns, nearly straight, strong ; those of the branch- 

 lets interspersed with numerous short, uneven, 

 thorns, having greyish glands. 



Leaves, hairy, composed of five or seven leaflets. 



Leafstalks, thorny, glandulous. 



Leaflets, oval, pointed, rugged, with gelatinous glands 

 that exhale the same odour as those of the Rosa 

 rubiginosa. 



Flowers, solitary, almost sessile, of a pale red; sur- 

 rounded by four little horizontal leaves, which 

 form a sort of ruff round the flowers. 



Flowerstalks, slightly pubescent. 



Floral leaves, pink. 



Tube of calyx, naked, round. 



Sepals, displayed, foliaceous ; the divisions straight, 

 narrow, and numerous. 



Fruit, of a light red; smooth, oval, crowned with 

 glandulous connivent sepals. 



Disk, almost obliterated ; forming a round mouth. 



Styles, very woolly. 



This variety, introduced into England in 1817, was 



o 



