ROSACEZ. (ROSE FAMILY.) EU 
1. CHRYSOBALANUS, L. 
Calyx bell-shaped, 5-cleft, persistent. Petals 5. Stamens about 20; the in- 
ner ones often shorter and sterile. Ovary with 2 collateral erect ovules ; the 
style arising from its base. Drupe l-seeded ; the stone grooved. — Low unarmed 
shrubs. Leaves nearly sessile, entire, with minute stipules. Flowers small, in 
axillary or terminal paniculate cymes. 
1. C. oblongifolius, Michx.* Leaves somewhat coriaceous, oblong, nar- 
rowed downward, mucronate, smooth on both sides, or hoary-pubescent beneath, 
deciduous ; cymes terminal, racemose, many-flowered ; calyx pubescent; sta- 
mens and ovary smooth ; drupe ovoid. — Dry sandy pine barrens, Florid®, Ala- 
bama and Georgia. May. — Stems creeping, the flowering branches 6 — 12! high. 
Leaves 3'-4'long. Flowers greenish-white, mostly abortive. 
2. C. Ieaco, L. (Cocoa Pruw.) Leaves short-petioled, round-obovate, 
mostly emarginate, smooth, coriaceous ; cymes axillary, few-flowered, shorter than 
the leaves ; calyx pubescent and hoary; stamens and ovary hairy; drupe large 
roundish. — South Florida. — Shrub 4° - 6° high, the stem and branches rough- 
ened with small white tubercles. Leaves 2' long, 13! wide. Drupe yellow, pur- 
ple, or black. 
g. PRUNUS, L. PLUM. Gat 
Calyx 5-cleft, deciduous. Petals 5, spreading. Stamens 15-30. g 
with 2 collateral suspended ovules. Style terminal. Drupe fleshy; the stone 
even. — Trees or shrubs. Leaves simple. Flowers white. 
$1. Pruxus. (PLum.)— Drupe glaucous: stone more or less compressed: leaves 
convolute in the bud: flowers in lateral clusters, appearing before the leaves: 
branches often spiny. 
l. P. Americana, Marsh. Leaves thick, ovate or somewhat obovate, acu- 
minate, rounded or slightly cordate at the base, pubescent beneath, sharply ser- 
rate, on glandular petioles ; drupe large, globose. (P. hiemalis, EU.) — Woods, 
Florida to Mississippi, and northward. March and April.— A small tree. 
Leaves 2' - 3! long, smooth when old. Flowers very numerous. Plum — 
3/-1' in diameter, pleasantly acid, ripening in September. 
2. P. umbellata, Ell Leaves thin, ovate-lanceolate or oblong, acute at 
both ends, or the upper ones rounded at the base, finely and sharply serrate, 
smooth or soft-downy beneath; calyx-teeth emarginate, pubescent; drupe glo- 
` bose; stone slightly compressed. — Dry light soil, Florida and Alabama to South 
Carolina: February and March. —.A shrub or small tree. Branches purple, 
shining. Leaves l'-1j/ long. Plum rarely j' in diameter, dark-purplish or 
black, sour and bitter, ripening in August. E T 
3. P. Chicasa, Michx. Leaves thin, fencbilate or obiompi 
acute, smooth, minutely and sharply serrate, with the teeth glandular and | in- d iE 
 eurved ; flowers short-peduncled ; calyx smooth; drupe 
or eens: thickets, aber dst s small t 
