128 ROSACEA. (ROSE FAMILY.) 



smooth, 3 -5-flowcrcd ; styles 4-5; fruit large, globose, red. — Varies (0. bi- 

 fida, Jill.) with smaller (1'), thinner, and smooth leaves, whieh are glossy above. 

 — Margius of pine-barren ponds, Florida to Soutli Carolina, and westward- 

 March and April. — A small tree. Leaves 2' -3' long. Fruit juiey, edible. 



9. C. flava, Ait. Glandular; leaves cuncate-obovatc, serrate and slightly 

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

 1 - 4-flowercd ; stylos 4 - 5 ; flowers and pear-shaped fruit large. — Shady sandy 

 places, Florida to North Carolina, and westward. May. — Tree 15°- 20° high. 

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



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

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

 a slender petiole, becoming smoothish ; those on the young branches often spar- 

 ingly lobed ; corymbs 3 - 6-flowered, unilateral ; styles 5 ; fruit small, globose, 

 red. (C. elliptica, Ait.) — Dry pine barrens, Florida to South Carolina, and 

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

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



11. C. parvifolia, Ait. Leaves obovatc, scarcely petioled, sen-ate, 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, Florida to Missis- 

 sippi, and northward. April and May. — A much branched shrub, 3° - 5° high. 

 Leaves 1 ' long. 



16. 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-seedcd carpels. — Trees or 

 shrubs. Flowers cymosc or corymbose. 



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



1. P. COl'OIiaria, L. Leaves on long and 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, Mississippi to North Carolina, and 

 northward. April — A small tree. Leaves 2' - 3' long. 



2. P. angustifolia, Ait. Leaves lanceolate or oblong, acute at the base, 

 serrate, Bhort-petiolcd ; corymbs simple, few-flowered; (lowers rose-color, vary 

 fragrant; Styles smooth, distinct — Open woods, Florida to Mississippi, and 

 northward. April. — A small tree. Fruit very sour. 



* * f.rans simple, the midrib glandular '//*»•' : fruit baccate, ()l<J*>se. 



•'i. P. arbutifolia, L. Leaves oval-oblong or somewhat obovate, abruptly 

 acute or mucronate, smooth above, except the midrih, finely serrate ; styles vil- 

 lous at the base. 



Var. erythrocarpa. Stem mil (. r >°- io°) ; branchlets, cymes, and lower 

 surface of the large (2'-4') leaves tomentose and hoary ; petals and anthers red- 

 dish ; berries red. (Aroma arbutifolia, EU.) 



