120 ROSACEE. (ROSE FAMILY.) 
1j/-2! long. Plum about j' in diameter, thin-skinned and of an agreeable 
flavor. | 
$2. Cerasus. (CHERRY.)— Drupe not glaucous: stone globular or slightly com- — 
pressed: leaves folded in the bud, deciduous. — Spineless shrubs or trees. 
* Flowers clustered. 
4 d Pennsylvanica, L. Leaves thin, ovate-lanceolate, acuminate, finely 
and sharply serrate, green and smooth on both sides ; flowers several in a cluster, 
on long peduncles ; drupe globose, light Mf. fody woods, North Carolina, 
and northward. May.— A small tree. Fruit small and sour. 
* * Flowers in racemes terminating leafy branches. 
5. *. serotina, Ehrhart. Leaves smooth, varying from oval to oyate- 
lanceolate, mostly acute or acuminate, serrate, with the teeth callous and ap- 
pressed; racemes long, spreading ; drupe globose, purplish-black. — Woods, 
Florida to Mississippi, and northward. April and May. — A tree 20° - 60° high. 
6. P. Virginiana, L. Smooth throughout, or the lower surface of the 
leaves, branches, and racemes more or less pubescent ; leaves thin, oval, oblong 
or obovate, finely and sharply serrate, abruptly acute or acuminate; racemes 
rather short and erect; drupe red. (P. hirsuta, Ell. ?) — Light sandy soil, Geor- 
gia and northward. April.— Shrub 39—99 high. Leaves 1’-3! long. Drupe 
astringent. 
$3. LAUROCERASUS. (CHERRY-LAUREL ) — Drupe not glaucous : stone globular: 
flowers in racemes from the axils of evergreen leaves. 
.7. P. Caroliniana, Ait. (Mock ORANGE.) Leaves coriaceous, smooth 
and glossy, ovate-lanceolate, acute, mostly entire; racemes shorter than the 
leaves, white; drupe ovoid, soon dry, black. — Banks of rivers, Florida to North 
Carolina, and westward. February and March.— A small tree. 
3. SPIRZEA, L. Meapow-Sweer. 
Calyx 5-cleft, persistent. Petals 5, roundish, imbricated in the bud. Stamens 
10-50. Follicles 3-12, 1 —10-seeded. Styles terminal. — Shrubs or perennial 
herbs, with simple or compound leaves. Flowers white or rose-color, sometimes 
oe. 
* Shrubs: Nass perfect. : 
«— Flowers corymbose. 
1. S. opulifolia, L. Leaves broadly ovate or cordate, 3-lobed, doubly 
erenate-serrate, smooth; corymbs umbellate, terminating the short branches, 
mostly pubescent ; follicle smooth, inflated, 2-4-seeded. — Var. FERRUGINEA; 
Nutt. Leaves smaller (l' long), slightly lobed, covered, like the branches, © 
corymbs, and follicles, with a dense brownish pubescence. — Banks of streams, 
Florida and Alabama (the variety) to the mountains of Georgia, and northward. ae 
c ap 39-5? high, the old bark separating in uuu layers- 
