ROSACEA. SILVA OF NORTH AMERICA. 25 
PRUNUS ANGUSTIFOLIA. 
‘Chickasaw Plum. 
CALYX-LOBES glabrous, glandular-ciliate. Stone turgid. Leaves lanceolate to 
oblong-lanceolate, thin and lustrous; petioles biglandular. 
Prunus angustifolia, Marshall, Arbust. Am. 111.— Koch, Rep. Geolog. Surv. N. Car. 1860, iii. 56. — Ridgway, 
Dendr. i. 103. — Sargent, Forest Trees N. Am. 10th Cen- Proc. U. S. Nat. Mus. 1882, 65.— Watson & Coulter, 
sus U.S. ix. 66. Gray’s Man. ed. 6, 152 (in part). — Gray, Forest Trees 
Prunus Chicasa, Michaux, 27. Bor-Am. i. 284. — Du NV. Am. t. 47. 
Mont de Courset, Bot. Cult. ed. 2, v. 540. — Poiret, Zam. Prunus insititia, Walter, FZ. Car. 146 (not Linnzeus). — 
Dict. vy. 680. — Persoon, Syn. ii. 35. — Nouveau Duhamel, Abbot, Insects of Georgia, ii. t. 60. 
v. 183. — Elliott, Sx. i. 542. — Sprengel, Syst. ii. 476.— Cerasus Chicasa, Seringe, De Candolle Prodr. ii. 538. — 
Audubon, Birds, t.53.— Spach, Hist. Vég. i. 397. — Tor- Hooker, £7. Bor.-Am. i. 168 ; Compan. Bot. Mag. i. 24. — 
rey & Gray, Fl. N. Am. i. 407. — Roemer, Fam. Nat. Don, Gen. Syst. ii. 514. 
Syn. iii. 58. — Darlington, Fl. Cestr. ed. 3, 73. — Curtis, 
A small tree, fifteen to twenty-five feet in height, with a trunk rarely exceeding eight inches in 
diameter, and slender spreading virgate branches often armed with long thin spinescent lateral branch- 
lets; or more often a shrub five or six feet high, with many stems, forming broad thickets. The bark 
of the trunk is an eighth of an inch thick, dark red-brown and slightly furrowed, the surface broken 
into long thick appressed scales. The branchlets, when they first appear, are glabrous or covered with 
short caducous hairs, and are bright red and lustrous; in their second year they lose their lustre and 
grow darker, and are then often brown marked with occasional horizontal orange-colored lenticels. The 
winter-buds are acuminate and a sixteenth of an inch in length, and covered with chestnut-brown scales. 
The leaves are lanceolate or oblong-lanceolate, pomted at the two ends, apiculate, and sharply serrate: 
with minute glandular teeth; they are glabrous or, while young, are sometimes furnished on the lower 
surface with tufts of long pale hairs in the axils of the primary veins, bright green and lustrous on the 
upper, and paler and rather dull on the lower surface, one to two inches long and a third to two 
thirds of an inch broad, and are borne on slender glabrous or puberulous bright red petioles, from a 
quarter to a half of an inch in length, and furnished near the apex with two conspicuous red glands. 
The stipules are linear or lobed, glandular-serrate, and half an inch long. The flowers, which appear 
before the leaves from the beginning of March in the extreme southern states until the middle of April 
at the north, and which are one third of an inch across, are produced in subsessile two to four-flowered 
umbels, and are borne on slender glabrous pedicels which vary from one fourth to one half of an inch 
in length. The calyx-tube is glabrous and campanulate, with oblong obtuse lobes, reflexed at maturity, 
ciliate on the margins with slender hairs, and covered on the inner surface with pale pubescence. The 
petals are white or creamy white, obovate, rounded at the apex, and contracted at the base into short 
broad claws. The filaments and pistil are glabrous. The fruit, which ripens between the end of May 
and the end of July, is globose or subglobose, half an inch in diameter, bright red, rather lustrous, and 
nearly destitute of bloom, with a thin skin, and tender juicy subacid yellow flesh adherent to the turgid 
stone, which is more or less thick-margined on the ventral, and conspicuously grooved on the dorsal 
suture. 
Prunus angustifolia is widely naturalized, especially in the southern Atlantic and Gulf states, in all 
the region from southern Delaware and Kentucky to central Florida, eastern Kansas and eastern Texas. 
Occupying the margins of fields and other waste places near human habitations, usually in rich soil, it 
