140 ROSACES. (ROSE FAMILY.) 



styles mostly 3 ; fruit dull red, globose, ^' wide, dotted. Near watercourses 

 in the upper districts. April -May. 



11. C. collina, Chapm. Brauchlets, leaves, and corymbs appressed- 

 pubesceut, soon glabrous; leaves |'-2' long, obovate, acute, finely buc oo- 

 tusely serrate, taperiug iuto a short petiole ; tiowers f ' wide ; calyx lol.es 

 lanceolate, glaudular, longer thau tlie tube ; styles 5 ; fruit globular, ^ m 

 diameter. Rocky hillsides, North Georgia aud Teiiuessee. April. A 



small tree. 



* * Corymbs simple, 1 - &-jiotcered. 



12. C. sestivalis, Torr. & Gray. Glandless ; leaves rigid, pubescent, be- 

 coming smooth above, and rusty-pubescent on the veins beneath, cune.i.e 

 obovate, crenate above the middle, tapering into a short petiole; corymbs 

 smooth, 3 - 5-flowered ; styles 4 - 5 ; fruit large, globose, red. Varies (C. lu- 

 cida, Ell.) with smaller (!'), thinner, and smooth leaves, which are glossy 

 above. Margins of pine barren ponds, Florida to Soutli Carolina, aud west- 

 ward. March -April. A small tree. Leaves 2' -3' long. Fruit juicy, 

 edible. 



13. C. flava, Ait. Glandular; leaves cuneate-obovate, serrate and slightly 

 lobed near the apex, smooth, tapering into a short petiole ; corymbs smooth, 

 1 - 4-flowered ; styles 4-5; flowers and pear-shaped fruit large. Shady 

 sandy places, Florida to North Corolina, and westward. May. Tree 1 5 - 

 20 high. Leaves 2' -3' long. Fruit greenish yellow. 



14. C. glandulosa, Michx. Branchlets, leaves and corymbs whitened 

 with soft hairs ; leaves opaque, cuneate, entire or glandular-serrate, tapering 

 into a slender petiole, becoming smoothish ; those on the young branches 

 often sparingly lobed ; corymbs 3 - 6-flowered, unilateral ; styles 5 ; fruit 

 small, globose, red. Dry pine barrens, Florida to South Carolina, and west- 

 ward. April. A small tree, with coarse bark, and long recurved branches. 

 Leaves 1' long. Fruit 3" -4" long. 



15. C. parvifolia, Ait. Leaves obovate, scarcely petioled, serrate, the 

 lower surface, like the branchlets and calyx, pubescent ; spines numerous, 

 long and slender ; flowers mostly solitary ; calyx lobes large, serrate ; styles 

 5 ; fruit large, globose or pear-shaped, somewhat hairy. Sandy soil. April 

 -May. A much branched shrub, 3 -5 high. Leaves 1' long. 



17. PYRUS, L. PEAR, APPLE. 



Calyx urn-shaped, 5-cleft. Petals 5. Stamens numerous. Styles 2-5. 

 Fruit fleshy or baccate, containing 2-5 cartilaginous 2-seeded carpels. 

 Trees or shrubs. Flowers cymose or corymbose. 



* Leaves simple, glandular : fruit depressed at the base. 



1 . P. COronaria, L. Leaves on long aud slender petioles, ovate, round- 

 ed, or slightly cordate at the base, angled or lobed, serrate, smooth ; corymbs 

 simple, few-flowered ; flowers rose-color, very fragrant ; styles woolly and 

 united at the base. Rich soil in the upper districts. April. A small tree. 

 Leaves 2' - 3' long. 



