

ROSACES 367 



I. CRUS-GALLI. 



Corymbs, leaves, and young branchleta slightly hairy while young, soon becoming glabrous 

 (glabrous while young in 1, 6, S, and 11). 

 Stamens 10. 



Anthers rose color or purple. 



Leaves glabrous, obovate-cuneif orm, coriaceous, their veins within the parenchyma ; 

 fruit short-oblong to subglobose, dull red often covered with a glaucous bloom. 



1. C. Crus-galli (A). 



Leaves oblong to ovate, usually acute, coriaceous ; fruit short-oblong to subglobose, 



dark crimson, lustrous. 2. C. Canbyi (A). 



Leaves obovate, usually short-pointed at the broad apex, subcoriaceous ; fruit 



short-oblong to obovate, bright scarlet. ' :J. C. Peoriensis (A). 



Leaves oblong-obovate to oval, or broadly ovate, their petioles glandular, with 



minute stipitate glands ; fruit short-oblong to subglobose, orange-red, villose 



until nearly fully grown. 4. C. fecunda (A). 



Anthers yellow. 



Leaves oval to elliptic, acute or acuminate, subcoriaceous ; fruit short-oblong, 



green tinged with red. 5. C. regalis (C). 



Leaves glabrous, obovate, acute, acuminate, or rounded at the apex, subcoriaceous ; 



fruit short-oblong, dull dark crimson. G. C. Arduemiae (A). 



Leaves obovate to oblong-cuneiform, rounded or acute at the apex, subcoriaceous ; 



fruit subglobose to obovoid, dull red, or green flushed with red. 



7. C. algens (A, C). 



Leaves ovate to obovate, acute, comparatively thin, dull green above ; fruit sub- 

 globose, flattened at the ends, dark dull crimson. 8. C. erecta (A). 

 Leaves oval to oblong-obovate, acute or acuminate, comparatively thin ; fruit 

 short-oblong, full and rounded at the ends, bright scarlet. 



9. C. acutifolia (A). 

 Stamens 20. 



Anthers rose color ; leaves obovate to elliptic, broad and rounded or acute at the 

 apex, coriaceous ; fruit short-oblong, green tinged with dark red. 



10. C. Bushii (C). 



Anthers yellow ; leaves obovate to oblanceolate, acute or rounded at the apex, snb- 

 coriaceous; fruit globose to subglobose, red. 11. C. arborea (C). 



Corymbs, leaves, and branchlets more or less villose or pubescent throughout the season. 

 Stamens 10. 



Anthers rose color ; leaves broadly obovate to elliptic coriaceous, scabrous above ; 

 fruit globose, bright orange-red, with a yellow cheek. 12. C. Engelmaiiiii (A). 

 Anthers yellow (doubtful in 13 and 14-) 



Leaves oval, oblong-obovate or elliptic, acute, thin to subcoriaceous; fruit 

 globose to subglobose, orange-red. 13. C. denaria (C). 



Leaves obovate to obovate-cuneiform, rounded or acute at the apex, thin ; fruit short- 

 oblong, dark red, more or less pruinose. 14. C. signata (C). 

 Leaves broadly oval to oblong, rounded or acute or short-pointed at the apex, 

 coriaceous ; fruit subglobose, dull green tinged with red or cherry-red. 



15. C.'Palmeri (C). 

 Stamens 20. 



Anthers rose color. 



Leaves oblong-obovate, acute, coriaceous, scabrate ; fruit short-oblong, dull green 



tinged with red, sKghtly pruinose. 10. C. edita (C). 



Leaves oblong to obovate-cuneiform, rounded and obtuse or occasionally acute at 



the apex, coriaceous, glabrous or scabrate above ; fruit globose to subglobose or 



short-oblong, dark red. 17. C. tersa (C). 



