ROSA.CEAE 65 



ates from this, thimble-like (raspberries). 



1. Leaves simple: bark shredding: branches bristly, 



without prickles. (Flowering raspberries). 2. 

 Leaves compound: bark not shredding. 4. 



2. Flowers white. 3. 



Flowers magenta. R. odoratus. 



3. Flowers usually solitary. R. deliciosus. 

 Flowers usually several in a cluster. R. parviflorus. 



4. Leaflets 5-15, distinctly pinnate. (Flowering brambles). 5. 

 Leaflets 3-5, mostly nearly or quite palmate. 6. 



5. Flowers single. R. rosaefolius. 

 Flowers double. R. rosaefolius coronarius. 



6. Leaves white beneath: fruit thimble-like. (Raspberries). 7. 

 Leaves not usually white: fruit solid. 11. 



7. Stems with glandular hairs. (Wine b.). R. phoenicolasius. 

 Stems not red-hairy. 8. 



8. Stems with bristles and also somewhat prickly. 9. 

 Stems prickly but scarcely bristly. 10. 



9. Fruit red. R. strigosus. 

 Fruit amber. R. strigosus albus. 



10. Fruit black. (Blackcap). R. occidentalis. 

 Fruit amber. R. occidentalis pallidus. 



11. Erect or ascending. (Blackberries). 12. 

 With many trailing stems. (Dewberries). 16. 



12. Leaflets not laciniate. 13. 



Leaflets deeply cut. R. laciniatus. 



13. Leaflets narrow, glabrous: prickles few. R. amabilis. 

 Leaflets broad, somewhat hairy: prickles many. 14. 



14. Flowers in elongated clusters: pedicels with many 



dark glandular hairs, and rather short-villous. 15. 

 Flowers fewer: pedicels long-villous, glandless or 



with pale glands. R. argutus. 



15. Fruit black. R. allegheniensis. 

 Fruit amber. R. allegheniensis albinus. 



16. Flowers moderate (about 25 mm.). R. procumbens. 

 Flowers large (30 mm.). R. procumbens roribaccus. 



