166 ROSACES. (ROSE FAMILY.) 



lobes, ofteu subscabrous above, more or less densely pubescent beneath ; flow- 

 ers 1' broad, in broad cymes; fruit bright scarlet with a light bloom, 1' broad. 

 (C. tomentosa, var. raollis, Gray. C. subvillosa, Schrad.) E. Mass, to Mo. 

 and Tex. Sometimes 20-30 high, blooming two weeks before the type. 



6. C. toruentdsa, L. Branches gray, rarely with stout gray spines ; 

 shoots, peduncles, and calyx villous-pubesceut ; glands none ; leaves large, 

 pale, prominently veined, densely pubescent beneath, ovate or ovate-oblong, 

 sharply serrate, usually incisely lobed, contracted into a margined petiole ; 

 flowers small, ill-scented; fruit dull red, obovate, rarely globose (-' broad), up- 

 right. Western N. Y. to Mich., Mo., and Ga. In flower 2-3 weeks after n. 5. 



7. C. punctata, Jacq. Branches horizontal ; glands none ; leaves smaller, 

 mostly wedge-obovate, attenuate and entire below, unequally toothed above, 

 rarely lobed, villous-pubesceut becoming smooth but dull, the many veins more 

 impressed, prominent beneath; fruit globose (!' broad), red or bright yellow. 

 (C. tomentosa, var. punctata, Gray.) Quebec to Out. and south to Ga. 



8. C. Crus-galli, L. (COCKSPUR THORN.) Branches horizontal, with 

 slender thorns often 4' long; glabrous ; leaves thick, dark green, shining above, 

 wedrje-obovate and oblanceolate, tapering into a very short petiole, serrate above 

 the middle; fruit globular, dull red (J' broad). Thickets, common. 



* * Corymbs simple, few- (1 - 6-) flowered ; calyx, bracts, etc., glandular. 



9. C. flava, Ait. (SUMMER HAW.) Tree 15-20 high, somewhat pu- 

 bescent or glabrous; leaves wedge-obovate or rhombic-obovate, narrowed into a 

 glandular petiole, unequally toothed and somewhat cut above the middle, rather 

 thin, the teeth glandular ; styles 4 - 5 ; fruit somewhat pear-shaped, yellowish, 

 greenish, or reddish (' broad) Sandy soil, Va. to Mo., and southward. 



Var. pubescens, Gray. Downy or vill jus-pubescent when young ; leaves 

 thickish, usually obtuse or rounded at the summit; fruit larger (' broad), 

 scarlet or sometimes yellow. Va. to Fla. 



10. C. parvifolia, Ait. (DWARF THORN.) Shrub 3-6 high, downy; 

 leaves thick, obovate-spatulate, crenate-toothed (^-1^' long), almost sessile, the 

 upper surface at length shining ; flowers solitary or 2 -3 together on very short 

 peduncles ; calyx-lobes as long as the petals ; styles 5 ; fruit globular or pear- 

 shaped, yellowish. Sandy soil, N. J. to Fla. and La. 



18. AMELANCHIER, Medic. JUNE-BERRI-. 



Calyx 5-cleft ; lobes downy within. Petals oblong, elongated. Stamens 

 numerous, short. Styles 5, united below. Ovary 5-celled, each cell 2-ovuled, 

 but a projection grows from the back of each and forms a false cartilaginous 

 partition ; the berry -like pome thus 10-celled, with one seed in each cell (when 

 all ripen). Small trees or shrubs, with simple sharply serrated leaves, and 

 white racemose flowers. (Amelancier is the name of A. vulgaris in Savoy.) 



1. A. Canadensis, Torr. & Gray. (SHAD-BUSH. SERVICE-BERRY.) A 

 tree 10-30 high, nearly or soon glabrous; leaves ovate to ovate-oblong, usu- 

 ally somewhat cordate at base, pointed, very sharply serrate, 1 - 3^' long ; bracts 

 and stipules very long-silky-ciliate ; flowers large, in drooping nearly glabrous 

 racemes ; petals oblong, 6 - 8" long ; fruit on elongated pedicels, globose, crim- 

 son or purplish, sweet and edible. (Var. Botryapium, Torr. Sf Gray.) Dry 

 open woodlands ; Newf . to Fla., west to Minn., E. Kan., and La. Fruit ripeu- 



