296 THE BOOK OP ROSES. 



6. Caucasus Dog-rose. 

 Rosa Canina Caucasea. 

 Rosa Caucasica. 



Leaflets, oval, large, soft. 

 Ovules, fifty or sixty. 

 Flowers, in clusters. 

 Fruit, very large, pulpy. 



7. Montezuma Rose. 



Rosa Canina Montezumce. 

 Shrub, with smooth, unarmed branches. 

 Stipules, fringed with glands. 

 Leafstalks, cottonous, bearing a few small thorns. 

 Leaflets, five ; oval-pointed, naked on both sides. 

 Tube of calyx, elliptical, naked. 

 Sepals, pinnated ; dilated at the summit. 



This sub-variety grows on the mountains near Mex- 

 ico, and was introduced into France by M. Boursault. 



8. Semi-double Dog-rose. 

 Rosa Canina Semidupla. 



Branches, slender, tortuous. 



Leaflets, small. 



Flowers, semi-double ; of a pale pink, or flesh-colour. 



CULTIVATED SUB- VARIETIES. 



9. Double Mountain Dog-rose. 



Shrub, having slender branches, purple towards the 

 sun. 



Leaflets, obtuse ; nerved, and rather pubescent under- 

 neath. 



Leafstalks, glandulous and pubescent. 



Floral leaves, oval-lanceolated. 



Flowers, semi-double, middle-sized; of a light pale pink. 



