132 ROSACE.^, (rose famfly.) 



3. PHYSOCARPUS, .Maxim. Nine-bauk. 



Carpels inflatod, 2-valved, 2 - 4-8ee(led. Seeds roundish, cruataceous. Al- 

 Imiiicn co|)ii)us. OtliorwiiJc like 5y>//(r(i. — Shrubs. Leaves palmately loliefl 

 or veined. 



1. P. Opulifolius, Maxim. Leaves Itrnadly ovate or cordate, S-lohed, 

 doulily ii(ii:itv->cii;ite, smooth ; corymbs umbellate, terminating the short 

 brandies, mostly pul)e.<cent ; follicle smooth, inflated, 2 -4- seeded. — Var. 

 FERKUuiNEA, Nidt. Leaves smaller (!' long), slightly lobed, covereil, like 

 the branches, corymbs, and follicles, with a dense brownish pultescence. — 

 Banks of streams, Florida and Alabama (the variety) to the mountains of 

 Georgia and Teimessee. April -May. — Shrub 3° -5° high, the ohl bark 

 separating in thin layers. Flowers white. 



4. SPIRJEA, L. Meadow-Sweet. 



Calyx 5-cleft, persistent. I'etals 5, roundish, imbricateil in the bud. Sta- 

 mens 10-50. FolliclesS- 12, 1 - 10-seeded. Styles terminal. Seedswithout 

 albumen. — Shrubs or perennial herbs, with simple or compound leaves. 

 Flowers white or rose-color, sometimes dioecious. 



* Shrubs : Jioivers perfect. 

 -i— Flowers cor//mbose. 



1. S. COrymbosa, Raf. Leavesundivided.ovate, unequally serrate near 

 the tip, whitish beneath; corymb large, smooth, compound ; flowers white; 

 follicle smooth. — Mountains of North Carolina and Georgia. June. — Shrub 

 1 ° - 2° high. Leaves 2' - 3' long. 



-I— -1— Florvers panicled. 



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

 surface, like the branches and close panicle, covered with a dense, ru.st-colored 

 pubescence ; follicles .5, not inflated, tomentose, several-seeded. — Low grounds 

 in the upper districts. June -July. — Stem 2° -3° high. Flowers small, 

 pale jiurjile. 



3. S. salicifolia, L. Smooth ; panicle dense-flowered ; leaves varying 

 from lanccolatf to oblong-ohovate, sharply and doubly serrate ; follicles not 

 inflated, smooth, several-seeded. — With the preceding. June - July. — Stem 

 2° - .5° high. Flowers white. 



* * Perennial herbs : leaves lobed or coinpoimcL 



4. S. lobata, .Murr. Flowers perfect, in long-peduncled paniculate cymes ; 

 leaves coarse, jiinnately lobed, the terminal lo1)e very large, reniform, 7-9- 

 parted, with tlie divisions incii^ely toothed and serrate; stipules reniform, 

 persistent; follicles 6-8, 1 - 2-.seeded. — Swamps along the mountains of 

 Georgia and North Carolina. June -July. — Stem smooth, ^i°-8° high 

 Upper leaves 3-lobed and sessile ; tlie lowest ones on long petioles. Flowers 

 rose-color. Petals and sepals often in fours. 



.5. S. AruncUS, L. Flowers dioecious, in elongated filiform panicled 

 racemes ; leaves thrice-pinnate ; leaflets thin, lanceolate-oblong, .sharply and 



