=8. Crataegus Calpodéndron= (Ehrhart) Medicus. Pear-thorn. Pear or Red Haw. Plate 84. Bark pale gray to dark brown, furrowed; spines occasional, slender 3-5 cm. (1-1/4-2 inches) long; leaves rhombic-ovate, 4-11 cm. (1-1/2-4-1/2 inches) long, 3-8 cm. (1-1/4-3 inches) wide, acute or acuminate at the apex, finely and doubly serrate, those on the vegetative shoots obtuse and more entire than the others, pubescent on both sides, becoming scabrate above, subcoriaceous, dull green above; petioles about 2 cm. (3/4 inch) long, wing margined, glandular hairy; corymbs white-tomentose, many flowered; flowers appear in June, about 1.5 cm. (2/3 inch) broad; stamens about 20; anthers small, pink; styles and nutlets usually 2 or 3; calyx lobes lanceolate-acuminate, glandular laciniate; fruit ripens in September, pyriform to ellipsoidal, orange-red or red, 8-10 mm. (1/3 inch) thick, flesh glutinous; nutlets with deep pits in their inner faces; calyx lobes reflexed. =Distribution.=--Central New York, northeastern New Jersey to Minnesota and Missouri and south in the mountains to northern Georgia. A large shrub or occasionally a tree 6 m. (20 feet) high, with ascending branches forming a broad crown. Specimens have been examined from the following counties: Boone (Deam); Floyd (Deam); Hancock (Mrs. Chas. C. Deam); Harrison (Deam); Marion (Mrs. Chas. C. Deam); Posey (Deam); Putnam (Grimes); Tippecanoe (Stanley Coulter); Wells (Deam); White (Deam); Whitley (Deam). =9. Crataegus chrysocárpa= Ashe. (_Crataegus Dodgei_ Sargent. _Crataegus rotundifolia_, Borckhausen.) Round-leaved Thorn. Plate 85. Bark dark red-brown, scaly; spines numerous, chestnut-brown, curved, 2-5 cm. (1-2 inches) long; leaves ovate-orbicular or obovate, 3-6 cm. (1-1/4-2-1/4 inches) long, 2-6 cm. (3/4-2-1/4 inches) wide, acute at the apex, broadly cuneate at the base, doubly serrate with rather coarse teeth and with 3 or 4 pairs of acute lobes, subcoriaceous, dark yellow-green and shining above, slightly pubescent or glabrous; corymbs glabrous or slightly pubescent; flowers 10-15 mm. (1/2-3/4 inch) wide; stamens 5-10; anthers light yellow; styles and nutlets usually 3-4; calyx lobes lanceolate, acuminate, usually entire, but glandular margined; fruit depressed-globose to short ovoid, about 10 mm. (1/2 inch) thick, flesh soft; calyx lobes reflexed. =Distribution.=--Nova Scotia and New Brunswick to Saskatchewan, south to Nebraska and Pennsylvania and in the mountains to North Carolina and New Mexico. Round topped shrub or tree sometimes 8 meters (25 feet) high. Specimens have been seen from the following counties: Delaware and Lagrange (Deam). [Illustration: Plate 85. CRATÆGUS CHRYSOCARPA Ashe. Round-leaved Thorn. (× 1/2.)] [Illustration: Plate 86. CRATÆGUS VIRIDIS Linnæus. Southern Thorn. (× 1/2.)]