=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.
[Illustration: Plate 91.