=14. Crataegus Jésupi= Sargent. Jesup's Thorn. Twin Mountain Thorn. Plate 90. Bark grayish-brown; spines stout, straight 2-4 cm. (3/4-1-1/2 inches) long; leaves elliptical-ovate, 3.5-7 cm. (1-1/2-3 inches) long, 2-5.5 cm. (1-2 inches) wide, acute or acuminate at the apex, broadly cuneate to truncate-cordate, serrate or doubly serrate, with 4 or 5 pairs of acute lobes, yellow-green above, paler beneath, glabrous; petioles slender, 2-3.5 cm. (3/4-1-1/2 inches) long, slightly winged above; corymbs glabrous, many-flowered; flowers appear in May, about 2 cm. (5/6 inch) broad; stamens about 10; anthers dark red; styles and nutlets usually 3 or 4; calyx lobes entire; fruit ripens in October, short-ellipsoidal to pyriform, dark red, slightly angled, lacking bloom when mature, about 1 cm. (3/8 inch) thick, flesh yellow, firm; calyx lobes mostly deciduous. =Distribution.=--Western Vermont, to southwestern Wisconsin and south to Pennsylvania and Owen County, Indiana. A shrubby tree, sometimes 6 m. (20 feet) high, with ascending branches and a round crown. Specimens examined: Owen (Mrs. Chas. C. Deam). =15. Crataegus rugòsa= Ashe. (_Crataegus deltoides_ Ashe). Fretz's Thorn. Plate 91. Spines numerous, 3-6 cm. (1-1/4-2-1/2 inches) long, stout curved; leaves broadly ovate, 3-7 cm. (1-2-3/4 inches) long and broad, acute or acuminate at the apex, cordate or truncate at the base, serrate or twice serrate with 4-6 pairs of broad acuminate lobes, glabrous, membranaceous; petioles 1-3 cm. (3/8-1-1/4 inches) long, glabrous; corymbs many-flowered, glabrous; flowers appear in May, about 2 cm. (5/6 inch) broad; stamens 10-20; anthers pink; styles and nutlets usually 4 or 5; calyx lobes deltoid-acuminate, entire or slightly serrate at the base; fruit ripens in October, depressed-globose, bright red, angular, glabrous, waxy, 1-1.5 cm. (1/2-2/3 inch) thick, flesh yellow, somewhat succulent; calyx lobes persistent, spreading, the tube rather prominent. =Distribution.=--Southwestern New England to southern Indiana and the mountains of North Carolina. A shrub or tree sometimes 6 m. (20 feet) high, with ascending branches and an irregular crown. Specimens examined: Allen (Deam); Decatur (Deam); Grant (Deam); Jennings (Deam); Owen (Deam); Perry (Deam); Wells (Deam). =16. Crataegus fílipes= Ashe. Miss Beckwith's Thorn. (_Crataegus silvicola_ var. _Beckwithae_ (Sargent) Eggleston). Plate 92. Spines numerous, curved, chestnut-brown, 2.5 to 6 cm. (1-2-1/2 inches) long; bark slightly scaly; leaves 2-7 cm. (3/4-2-3/4 inches) long, 2-6 cm. (3/4-2-1/2 inches) wide; leaves ovate, acute or acuminate at apex, rounded, truncate or on vegetative shoots cordate at base, serrate or doubly serrate, lower pair of acuminate lobes often deeply cut, membranaceous, glabrous; corymbs glabrous; flowers about 2 cm. (3/4 inch) broad; stamens about 10; anthers pink; styles and nutlets 3-5; fruit globose or compressed-globose, cherry-red, 8-10 mm. (1/3 inch) thick, ripens in October.