ROSACEZS. SILVA OF NORTH AMERICA. 59 
CRATAiGUS MOHRI. 
Haw. 
STAMENS 20; anthers light yellow. Leaves usually obovate, acute, dark green, 
and lustrous. 
Cratzgus Mohri, Beadle, Bot. Gazette, xxviii. 416 (1899).— Mohr, Contrib. U. S. Nat. Herb. vi. 548 (Plant Life of 
Alabama). — Gattinger, Fl. Tennessee, 98. 
A tree, from twenty to thirty feet in height, with a tall straight stem six or eight inches in 
diameter covered with thin ashy gray or light red-brown bark and sometimes armed with long simple 
or branched spines, and spreading, slightly pendulous branches forming a broad rather open sym- 
metrical head. The branchlets are slender, straight or slightly zigzag, marked by occasional dark 
oblong lenticels and armed with thin nearly straight bright chestnut-brown shining spines from an 
inch to an inch and a half in length; when they first appear they ‘are dark green and glabrous 
or slightly villose,’ and during their first season they are bright chestnut-brown and lustrous, and dark 
brown or gray in their second year. The leaves are obovate or rhomboidal, acute or acuminate 
at the apex, gradually narrowed and cuneate at the entire base, and coarsely and occasionally doubly 
serrate above, with straight or usually incurved eglandular teeth; when they unfold they are glabrous 
and slightly villose along the midribs and the lower side of the principal veins, and at maturity 
they are thin and firm or subcoriaceous, dark green and very lustrous above, pale below, from an 
inch to an inch and a half long and from two thirds of an inch to an inch wide, with usually four 
pairs of thin primary veins and stout midribs which in the autumn are bright red and sometimes 
puberulous on the under side; they are borne on short stout grooved petioles more or less winged 
toward the apex and frequently red at maturity. The stipules are linear, finely glandular-serrate, 
and often half an inch long. On vigorous leading shoots the leaves are sometimes three inches long 
and two inches wide, and mostly broadly oval and rounded at the apex, or ovate and acute; more 
coarsely and more generally doubly serrate than the leaves of lateral branchlets, they are frequently 
divided toward the apex into short broad acute lobes, and their petioles are broadly winged and 
occasionally glandular, with minute dark glands. The flowers, which open in the beginning of May 
when the leaves are nearly fully grown and are cup-shaped and about three quarters of an inch in 
diameter, are produced on slender elongated pedicels, in loose thin-branched many-flowered compound 
glabrous or villose lax corymbs, with linear-acute caducous bracts and bractlets. The calyx-tube is 
narrowly obconic, glabrous or occasionally pilose below, and the lobes are linear-lanceolate, entire or 
finely glandular-serrate, and reflexed after the flowers open. There are twenty stamens with small 
light yellow anthers, and from three to five styles surrounded at the base by a narrow ring of pale 
hairs. he fruit ripens about the middle of October and hangs gracefully on the elongated thin 
bright red pedicels, in many-fruited drooping clusters; it is subglobose or short-oblong, somewhat 
flattened at the apex, full and rounded at the base, bight orange-red,” and about a third of an inch 
1 At Birmingham, where this species is very abundant on the low 
wet flats west of the city and on the dry hills which surround it, it 
is quite glabrous with the exception of a few caducous hairs on the 
upper side of the midribs of very young leaves. The specimens, 
however, collected at Rome, Georgia, and distributed from the 
Biltmore Herbarium are more or less villose while young along 
the midribs and veins, and the corymbs are pubescent or villose. 
These hairs seem to disappear early in the season, but on a speci- 
men which I collected on the limestone hills of West Nashville, 
Tennessee, on October 12, 1899, the under side of the midribs was 
still puberulous. 
2 Mr. Beadle describes the fruit of Crategus Mohri as “dark 
red or greenish red, or frequently covered with black spots and 
