ROSACEA. SILVA OF NORTH AMERICA. 65 
CRATZAEGUS BOYNTONI. 
Haw. 
STAMENS 10; anthers pale yellow. Leaves ovate or oval, subcoriaceous, yellow- 
green. 
Cratzegus Boyntoni, Beadle, Bot. Gazette, xxviii. 409 Crategus rotundifolia, Britton & Brown, Jil. Fi. ii. 243 
(1899). — Mohr, Contrib. U. S. Nat. Herb. vi. 547 (Plant (in part) (not Moench) (1897). — Beadle, Bot. Gazette, 
Life of Alabama). — Gattinger, Fl. Tennessee, 98. xxv. 446. 
A nearly glabrous tree, occasionally twenty feet in height, with a tall straight trunk six or eight 
inches in diameter and sometimes armed with long gray branched spines, and stout ascending branches 
forming a narrow open irregular or occasionally round-topped head; or more often a shrub with 
numerous stems. The bark of the trunk is thick, slightly fissured, and broken into small plate-like 
scales which are gray often tinged with brown, or dark brown when the tree has grown in the shade of 
the forest. The branchlets are slender, straight or sometimes slightly zigzag, glabrous, marked by 
oblong dark lenticels, and armed with numerous thin nearly straight light chestnut-brown spines from 
an inch and a half to two inches in length; when they first appear they are light orange-brown, 
soon becoming dark red-brown and lustrous, and in their second season, losing their lustre, they are 
dark gray-brown, and ultimately ashy gray. The leaves are broadly ovate or oval, acute at the apex, 
full and rounded or cuneate at the entire glandular base, sharply and often doubly serrate above, with 
glandular teeth, and frequently divided into two or three pairs of short broad acute lateral lobes; as 
they unfold they are slightly glandular, viscid, and deep bronze-red in color, and when the flowers open 
early in May they are nearly fully grown and are membranaceous and glabrous or occasionally slightly 
pilose, becoming at maturity thick and firm in texture, glabrous, yellow-green on the upper surface, 
pale on the lower surface, from one to two inches and a half long and from one to two inches wide, 
with thin pale yellow midribs and from four to seven pairs of slender veins;* they are borne on stout 
petioles which are glandular, with bright red glands, shghtly winged above by the decurrent bases 
of the leaf-blades, and usually about half an inch long. The stipules are linear, finely glandular-serrate, 
and caducous. On vigorous leading shoots the leaves are often as broad as they are long, truncate 
or cordate at the base, and more coarsely dentate and more deeply lobed than the leaves of lateral 
branchlets; and their stipules are foliaceous, lunate, and coarsely glandular-dentate. The flowers, 
which are about three quarters of an inch in diameter and bad-smelling, are produced on short slender 
pedicels in compact four to ten-flowered compound corymbs, with large obovate-oblong bracts and 
bractlets rounded or acute at the apex and deeply divided into slender teeth tipped with large bright 
red glands. The calyx-tube is broadly obconic and the lobes are abruptly narrowed from broad bases, 
acute or rounded at the apex, and entire or obscurely and irregularly glandular-serrate above the 
middle. There are ten stamens with slender filaments and large pale yellow anthers, and from three to 
five styles surrounded at the base by a broad thick ring of hoary tomentum. The fruit ripens and 
falls early in October, and is produced in few-fruited erect clusters on short stout pedicels; it is 
depressed-globose, more or less angled, yellow-green flushed with russet-red, marked by small dark 
dots, and usually about half an inch in diameter; the calyx is prominent, with a broad deep cavity 
and large spreading lobes which often disappear before the fruit mpens. The nutlets vary from three 
1 The leaves of seedling plants are pubescent on the lower surface, particularly along the midribs and veins, and puberulous on the 
upper surface. 
