1G4 KOSACE.E. (KOSE FAMILY.) 



natifid, deciduous ; fruit oblong-ovate to nearly globular. Roadsides, E. Penn., 

 Tenn., etc. (Int. from Eu.) 



B,. RUBIGIN6SA, L. (SwEETBRiEK. EGLANTINE.) Resembling the last, 



but of more compact habit, the leaflets densely resinous beneath and aromatic, 



and doubly serrate ; the short pedicels and pinnatifid sepals hispid. (Incl. 



R. micrantha, Smith ; less aromatic, with oblong fruit and glabrous styles.) 



N. Scotia and Out. to S. C. and Tenn. (Int. from Eu.) 



16. PYBUS, L. PEAR. APPLE. 



Calyx-tube urn-shaped, the limb 5-cleft. Petals roundish or obovate. Sta- 

 mens numerous. Styles 2-5. Pome fleshy or berry-like ; the 2-5 carpels or 

 cells of a papery or cartilaginous texture, 2-seeded. Trees or shrubs, with 

 handsome flowers in corymbed cymes. (The classical name of the Pear-tree.) 



1. MAl/US (APPLE). Leaves simple; cymes simple and umbel-like; pome 

 fleshy, globular, sunk in at the attachment of the stalk. 



1. P. COl'Onaria, L. (AMERICAN CRAB-APPLE.) Leaves ovate, often 

 rather heart-shaped, cut-serrate orlobed,soon glabrous; styles woolly and united 

 at base. Glades, Ont. and W. New York to N. C., west to Minn., Kan., and 

 La. May. Tree 20 high, somewhat thorny, with large rose-colored very 

 fragrant blossoms, few in a corymb; fruit fragrant and greenish. 



2. P. angUStifolia, Ait. Resembling the last, but with leares oblong or 

 lanceolate, often acute at base, mostly toothed, glabrous; styles distinct. 

 Glades, Penu. to Fla., west to S. Intl., Kan., and La. April. 



2. ADENORHACHIS. Leares simple, the midrib glandular along the upper 



side ; cymes compound ; styles united at base ; fruit berry-like, small. 



3. P. arbutifdlia, L. f. (CHOKE-BERET.) A shrub usually 1 - 3 high ; 

 leaves oblong or oblanceolate, mostly acute or acuminate, finely glandular- 

 serrate, tomentose beneath ; cyme tomentose; flowers white or reddish ; fruit 

 pear-shaped, or globose when ripe, small, red or purple, astringent. Swamps 

 and damp thickets ; common, from N. Scotia to Ela., and west to Minn., 111., 

 Mo., and La. 



Var. melanocarpa, Hook. Nearly smooth throughout, with larger black 

 fruit ; leaves usually less acute. Of apparently the same range. 



3. SORBUS. Leaves odd-pinnate, with rather numerous leaflets ; cymes com- 

 pound ; styles separate; pome berry-like, small. 



4. P. Americana, DC. (AMERICAN MOUNTAIN-ASH.) Tree or tall 

 shrub, nearly glabrous or soon becoming so; leaflets 13 15, lanceolate, taper- 

 pointed, sharply serrate with pointed teeth, bright green ; cymes large and flat ; 

 berries globose, bright red, not larger than peas ; leaf-buds pointed, glabrous 

 and somewhat glutinous. Swamps and mountain-woods, Newf. to mountains 

 of N. C., west to N. Mich, and Minn. Often cultivated. 



5. P. sambucifolia, Cham. & Schlecht. Leaflets oblong, oval, or lance- 

 ovate, mostly obtuse or abruptly short-pointed, serrate (mostly doubly) with 

 more spreading teeth, often pale beneath ; cymes smaller ; flowers and berries 

 larger, the latter (4" broad) when young ovoid, at length globose ,- leaf-buds 

 sparingly hairy ; otherwise nearly as the preceding. Lab. to northern N. Eng. 

 and Lake Superior, and westward. 



