1902] NORTH AMERICAN TREES 109 
Flowers early in April. Fruit ripens late in October and November. 
lades and open woods near Marshall, Texas, in dry, gravelly soil, to 
western Louisiana and southern Arkansas. First noticed at Marshall on 
April 19, 1901, by William M. Canby, B. F. Bush, and C. S. Sargent. 
Well distinguished from Prunus umbellata, with which perhaps it may 
have been confounded, by its remarkable bark, which differs from that of all 
American plum trees, and by its variously colored, very late-ripening fruit. 
Crataegus Bushii, n. sp.— Leaves obovate, broad and rounded 
or acute at the apex, to elliptical, gradually narrowed, cuneate, 
and entire below the middle, coarsely serrate above, with straight 
gland-tipped teeth; when they unfold, green above, pale below, 
_  Villose, with short white hairs on both sides of the midribs and 
veins ; nearly fully grown when the flowers open, and then 
dark green and lustrous on the upper surface, slightly villose on 
the upper side of the midribs; at maturity coriaceous, very 
lustrous, 1% to 1% in. long, % to 1 in. wide, with stout mid- 
ribs deeply impressed above, and few slender prominent pri- 
mary veins ; on vigorous leading shoots usually elliptical, acute, 
coarsely serrate, frequently 3 in. long and 1% in. wide; petioles 
_ Stout, grooved, margined above, at first villose, finally glabrous, 
o Semally about % in. long; stipules linear-lanceolate or oblanceo- 
ae, glandular-serrate or entire, Y% in. long, caducous. Flowers 
Dubin 4 to Lin. in diameter in broad, compound, many-flowered, 
| Slabrous corymbs ; bracts and bractlets linear, entire, caducous ; es 
calyx-tube. broadly obconic, glabrous, the lobes elongated, __ ae 
linear-lanceolate, entire or occasionally slightly dentate, reflexed = : 
‘anthesis; stamens 20; anthers large, bright rose-color; styles _ 
Pal preemies at the base by conspicuous tufts of pale hairs. 
a cree slender peduncles in few-fruited drooping clusters, — 
wea 8reen tinged with dull red, % in. long; calyx-cavity _ 
TADS ogs : alow, = lobes only slightly enlarged, erect and : 
flesh ¢ co eames deciduous before the ripening of the beset Pe . 
rae, Nath , and hard; nutlets 2 or 3, broad, promi- 
oe on the back, ¥ in. long. : oo 
Cov Di to 20 feet in height with a trunk 8 or 10’ in. in diameter, ee 
> » ark red-brown, fissured bark broken into small, closely = 
les, small, Spreading branches forming a broad, irregular, open oe : 
