120 ROSACEiE. (rose FAMILY.) 



1^' - 2' long. Plum about V in diameter, thin-skinned and of an agreeable 

 flavor. 



^2. Cerasus. (CiiEKRY.^ — Driipc tiot glaticous : stone globular or slightly com- 

 pressed: h'avcs folded in the bud, deciduous. — Spineless shrubs or trees. 

 * Flowers clustered. 



4. P. Pennsylvanica, L. LcavestIiin,ovate-lanceolate, acuminate, finely- 

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

 on long peduncles ; drupe globose, light red. — Rocky woods, North Carolina, 

 and nortliward. May. — A small tree. Fruit small and sour. 



* * Flowers in racemes terminatinij ha fi] branches. 



5. P. ECrotina, Ehrhart. Leaves smooth, varying from oval to ovatr- 

 lanccolatc, mostly acute or acuminate, serrate, with tlic tcctli callous and ap- 

 presscd; racemes long, spreading; drupe globose, purjilish-black. — Woods, 

 Florida to Mississippi, and northward. April and May. — A tree 20° -GO*' high. 



6. P. Virginiana, L. Smootli throughout, or the lower surface of the 

 leaves, branclics, and racemes more or less pubescent ; leaves thin, oval, oblong 

 or obovatc, finely and sharply sen'ate, abruptly acute or acuminate ; racemes 

 rather sliort and erect ; drupe red. (P. hirsuta, Ell. ?) — Liglit sandy soil, Geor- 

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

 astringent. 



^ 3. Lauiioceij.vscs. (Ciierky-Laurel ) — Drupe not (jlaucous : stone (/lobular : 

 flonrrs in racemes from the axils of rrerffrcen Icmrs. 



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 JIarch. — A small tree. 



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



Calyx 5-clcft, persistent. Petals .5, roundish, imbricated in the hud. Stamens 

 10-50. Follicles 3- 12, 1 -10-.seeded. Styles terminal. — Shrubs or perennial 

 herbs, with .simple or comjjound leaves. Flowers white or ro.sc-color, sometimes 



dioicious. 



* SJirnbs : floicers peifrct. 



-t- Flowers corymbose. 



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



crcnate-serratc, stnooth ; corj-mbs umbellate, terminating the short branches, 



mostly pubescent ; follicle smooth, inflated, 2-4-sccded. — Var. kerruoinka, 



Nutt. Leaves smaller (1' long), slightly lobcd, covered, like (he branches, 



corymbs, and follicles, with n dense brownish pubescence. — Banks of streams, 



Florida and Alabama (the variety) to the mountains of Cicorgia, and nortbwanl. 



April and May. — Shrub 3° -5° high, the ohl bark sepurutiiig lu Uiui iaycn.. 



Flowers white. 



■>- ■>- FtoiriTS panichd. 



2. 8. tomcntosa, T<. Leaves simple, ovate or nblonsr, «Tmto, the Iow«t 

 Furfttcc, like the bntnchwi and close panicle, covered with a dense, rubt-culorcd 



