120 ROSACEA, (rose family.) 



1 J' - 2' long. Plum ahout J' in diameter, thin-skinned and of an agreeable 

 flavor. 



§ 2. Cerascts. (Cherry.^ — Drupe not glaucous : stone globular or slightly com- 

 pressed : leaves folded in the bud, deciduous. — Spineless shrubs or trees. 

 * Flowers clustered. 



4. P. Pennsylvanica, L. Leavesthin,ovate-lanceoIate, acuminate, finely 

 and sharply serrate, green and smooth on both sides ; flowers several in a cluster, 

 on long peduncles ; drupe globose, light red — Rocky woods, North Cai'olina, 

 and northward. May. — A small tree. Fruit small and sour. '/ 



* * Flowers in racemes terminating hafjj branches. 



5. P. serotina, Ehrhart. Leaves smooth, varying from oval to ovate- 

 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 obovato, finely and sharply serrate, abruptly acute or acuminate ; racemes 

 rather short and erect ; drupe red. (P. hirsuta. Ell. 7) — Light sandy soil, Geor- 

 gia and northward. April. — Shrub 3° - 9° high. Leaves 1'- 3' long. Drupe 

 astringent. 



5 3. Laurocerashs. (Cherry-Laurel ) — Drape 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, Plorida to North 

 Carolina, and westward. Februai-y and March. — A small tree. 



3. SPIK^A, L. Meadow-Sweet. 



Calyx .5-clcft, 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 



dioecious. 



* Slirubs ; flowers pet feet. 



-t- Flowers corymbose. 



1. S. opulifolia, L. Leaves broadly ovate or cordate, 3-Iobed, doubly 

 crenate-serrato, smooth ; corymbs umbellate, terminating the short branches, 

 mostly pubescent ; follicle smooth, inflated, 2-4-Seeded. — Var. ferruginea, 

 Nutt. Leaves smaller (1' 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. 

 April and May. — Shrub 3° - 5° high, the old bark separating iu luiii layers. 



Flowers white. 



•<- -1— Flowers panicled. 



2. S. tomentosa, L. Leaves simple, ovate or oblonfr, serrate, the lower 

 surface, like the branches and close panicle, covered with a dense, rust-colored 



