ROSACEZ, SILVA OF NORTH AMERICA. 71 
CRATZIGUS SUBORBICULATA. 
Red Haw. 
STAMENS 20; anthers rose color. Leaves suborbicular to oval or rarely oblong, 
short-pointed, thin, dark dull green. 
Crategus suborbiculata, Sargent, Rhodora, iii. 72 (1901). 
A nearly glabrous tree, rarely more than fifteen or sixteen feet in height, with a well-developed 
stem five or six inches in diameter covered with pale gray scaly bark, and stout spreading branches 
forming a broad low flat-topped head. The branchlets are stout, slightly zigzag, marked by oblong 
pale lenticels, and armed with thick straight or slightly curved bright chestnut-brown shining spines 
from one to two inches in length; when they first appear they are dark orange or red-brown, soon 
becoming bright orange-brown and very lustrous, lighter colored during their second year, and 
ultimately dull ashy gray. The leaves vary from nearly orbicular to oval or rarely to oblong, and are 
short-pointed at the apex, full and rounded or broadly cuneate at the entire base, sharply and doubly 
serrate above, with slender straight or incurved glandular teeth, and often divided above the middle 
into three or four pairs of short acute lobes ; when they unfold they are pale yellow-green and some- 
what villose on the upper surface toward the base and below in the axils of the principal veins, with 
a few short caducous hairs, and in the autumn they are thin but firm in texture, dull dark green 
above, paler below, and usually about an inch and a half long and broad, with slender midribs 
and four or five pairs of thin primary veins deeply impressed above; they are borne on slender 
grooved shghtly glandular petioles more or less winged above by the decurrent leaf-blades and from 
five eighths of an inch to an inch in length. The stipules are linear-lanceolate, coarsely glandular- 
serrate, and from one third to one half of an inch long. On vigorous leading shoots the leaves 
are nearly orbicular or short-oval, more coarsely serrate and more deeply lobed than the leaves of 
lateral branchlets, and frequently three inches long and broad, and their petioles are often broadly 
winged and conspicuously glandular. The flowers open during the first week in June, when the 
leaves are about a third grown, and are three quarters of an inch in diameter ; they are produced on 
short stout pedicels, in compact six to twelve-flowered glabrous compound corymbs, with linear finely 
glandular serrate bracts and bractlets. The calyx-tube is broadly obconic, and the lobes are gradually 
narrowed from broad bases, elongated, acuminate, entire or occasionally obscurely denticulate, and 
reflexed after the flowers open. There are twenty stamens with slender filaments and small rose- 
colored anthers turning dark purple in fading, and five styles surrounded at the base by a broad ring 
of hoary tomentum. The fruit is borne on short rigid pedicels, in few-fruited erect clusters, and falls 
in October without becoming mellow; it is subglobose but often rather longer than broad, about five 
eighths of an inch in diameter, and dull red more or less blotched with green, or often wholly green on 
one face; the calyx is enlarged and prominent, with a broad deep cavity and nearly entire wide-spreading 
often closely appressed lobes; the flesh is yellow, thin, dry, and hard ; the five nutlets are broad and 
thick, obscurely and unequally grooved on the back, and about a quarter of an inch in length. 
Crategus suborbiculata grows opposite Lachine on low limestone ridges near the south bank of 
the St. Lawrence River in the Province of Quebec, where it was discovered at Caughnawaga in August, 
1899, by Mr. J. G. Jack. 
