164 ROSACEA. (ROSE FAMILY.) 



natifid, deciduous ; fruit ol)long-ovate to nearly globular. — Roadsides, E. Penn., 

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



R. RUBiGiNOSA, L. (SwEETBRiER. EGLANTINE.) Resembling the last, 

 but of more compact habit, the leaflets denselij resinous beneath ana aromatic, 

 and donhli/ serrate : the short pedicels and pinnatifid sepals hispid. (Inch 

 U. micrantha, Smith : less aromatic, Avith oblong fruit and glabrous styles.) 

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



16. PYRUS, L. Pear. Apple. 



Calvx-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 

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

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



§ I. MALUS (Apple). Leaves simple; cymes simple and umbel-like; pome 

 flesh ij, globular, sunk in at the attachment of the stalk. 



1. P. coronaria, L. (American Crab-Apple.) Leaves ovate, often 

 rather heart-shaped, c«^se?•mfe or lobed, soon glabrous; styles woolly and united 

 at iase. — Glades, Out. 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, l)ut with leaves oblong or 

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

 Glades, Penn. to Fla., Avest to S. Ind., Kan., and La. April. 



§ 2, ADENORHACHIS. Leaves simple, the midrib glandular along the upper 

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



'%. P»%rbutif6Iia, L. f. (Choke-berry.) 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 Fla., and west to Minn., 111., 

 Mo., and La. 



Var. melauocarpa, 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 

 shrnh, 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, NeAvf. to mountains 

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



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

 ovate, mosthj 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 ,• 'eaf-buds 

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

 and Lake Sunerjor, jind westward. 



