562 MALACEAE 
hypanthium tomentose: sepals 5-7 mm. long, serrate, glandular, tomentose: corolla 2-2.5 
cm. wide: stamens 20, the anthers pale yellow : fruit subglobose, 13-18 mm. thick, eventu- 
ally bright red, ripening in August and early September: nutlets 3-5, 7-8 mm. long, the 
hypostyle about 5 mm. long. 
Mostly in rich soil, Michigan to middle Tennessee and Missouri. 
143. Crataegus Arkansana Sarg. A tree 5-7 m. tall, with gray scaly bark. Leaf- 
blades oval or oblong-ovate, 4-10 cm. long, 2.5-8 cm. wide, at maturity glabrous on the 
upper surface, glabrate beneath or with some pubescence along the midrib and in the axils 
of the veins, acute at the apex, broadly cuneate or rounded at the base, sharply serrate 
and usually incised above the middle into 6-8 short acute lobes ; petioles 1.5-4 cm. long, 
winged above, ultimately glabrous or glabrate: corymbs compound, many-flowered, vil- 
lous: pedicels and hypanthium villous-tomentose : sepals 4-5 mm. long, incised, glandu- 
lar: corolla 2-2.5 cm. wide: stamens 20, the anthers pale yellow : fruit oblong or obovoid, 
13-18 mm. thick, at maturity bright crimson, the flesh thick and dry: nutlets 3-5, about 
7 mm. long, the hypostyle about 5 mm long. 
Mostly in rich soil, southern Arkansas. 
144. Crataegus Texana Buckl. A tree, sometimes 10 m. tall, with a trunk 3 dm. 
in diameter clothed with scaly bark. Leaf-blades broadly ovate, 5-10 em. long, 3-7.5 em. 
wide, at maturity lustrous on the upper surface, pubescent or tomentose beneath, especially 
along the midrib and principal veins, acute or sometimes rounded at the apex, cuneate or 
on leading shoots truncate at the base, the borders coarsely serrate and usually incisely 
8-10-lobed ; petioles 1-3 cm. long, winged above, tomentose or glabrate: corymbs com- 
pound, many-flowered, tomentose: pedicels and hypanthium tomentose: sepals 5-8 mm. 
long, incised, glandular, villous-tomentose: corolla about 2 em. wide: stamens 20, the 
anthers dark red: fruit short oblong or obovate, 12-18 mm. thick, at maturity bright ' 
er the flesh thick, soft: nutlets usually 5, 7-9 mm. long, slightly grooved on the 
ack. 
In rich bottom lands, central and western Texas. 
145. Crataegus gravida Beadle. A wide-spreading tree, sometimes 6-7 m. tall, 
with a trunk 2 dm. in diameter covered with dark brown scaly bark. Leaf-blades broadly 
ovate, 4-9 em. long, 3-8 cm. wide, at maturity lustrous on the upper surface, pubescent 
beneath, mostly acute at the apex, rounded, truncate or cordate at the base, the borders 
serrate and shallowly incised ; petioles 1.5-3 cm. long, pubescent : corymbs compact, sub- 
simple or compound, hirsute-tomentose, many-flowered : pedicels and hypanthium hirsute- 
tomentose : sepals 3-5 mm. long, glandular-serrate : corolla about 15 mm. wide: stamens 
about 20: fruit depressed-globose, 12-15 mm. in diameter, red at maturity : nutlets mostly 
5, about 8 mm. long, the hypostyle 4-5 mm. long. 
On hills, near Nashville, Tennessee. 
146. Crataegus cibaria Beadle. A shrub or small tree 3-6 m. tall, with dark gray 
scaly bark. Leaf-blades ovate, broadly ovate or oval, 3-9 em. long, 2-7 cm. wide, at ma- 
turity glabrous above, pubescent along the midrib and principal veins beneath, acute or 
acuminate at the apex, rounded or contracted at the base, the margins sharply serrate an 
incised ; petioles 1-4 cm. long, pubescent: corymbs ample, many-flowered, pubescent: 
pedicels pubescent: hypanthium glabrous: sepals 5-6 mm. long, incised, glandular : 
corolla 2 cm. broad or more: stamens 20, the anthers light yellow : fruit short-oblong or 
obovate, 10-14 mm. wide, 12-15 mm. long, at maturity red, the flesh soft and edible : nut- 
lets 3-5, about 8 mm. long, the hypostyle about 5 mm. long. 
On hills, near Nashville, Tennessee. 
147. Crataegus lácera Sarg. A tree 6-8 m. tall, with a trunk sometimes ldm. in 
diameter, clothed with gray or brownish scaly bark. Leaf-blades ovate or rhombic, or on 
leading shoots broadly ovate, 2.5-9 cm. long, 2-8 cm. wide, glabrous at maturity, acute at 
the apex, broadly cuneate or on leading shoots subtruncate at the base, the margins 
coarsely serrate and incised ; petioles 1-4 cm. long, margined, ultimately nearly glabrous : 
corymbs compound, sparingly villous, many-flowered : pedicels sparingly villous: se 
panthium glabrous: sepals linear-lanceolate, 4-5 mm. long, serrate, glandular: corolla 
15 mm. wide: stamens 20, anthers rose-color: fruit oblong, 7-10 mm. thick, 10-13 mm. 
long, at maturity bright red: nutlets 3-5, about 8 mm. long, the hypostyle 5-6 mm. long. 
In low woods, near Fulton, Arkansas. 
148. Crataegus Biltmoreàna Beadle. A shrub 1-5 m. tall, with gray or reddish 
brown scaly bark. Leaf-blades ovate or round-ovate, 2-7 cm. long, 2-6 cm. wide, pubes- 
cent on both surfaces, acute at the apex, contracted, rounded, or on leading shoots truncate 
at the base, the margins serrate and incised ; petioles 1-3 cm. long, margined, glandular : 
corymbs simple, pubescent, 3-7-flowered : pedicels and hypanthium pubescent : sepals 
