132 ROSACEJE. (KOSE FAMILY.) 



3. PHYSOCARPUS, Maxim. NINE-BARK. 



Carpels inflated, 2-valved, 2 - 4-seeded. Seeds roundish, crustaceous. Al- 

 bumen copious. Otherwise like S pinna. Shrubs. Leaves palmately lobed 

 or veined. 



1. P. opulifolius, Maxim. Leaves broadly ovate or cordate, 3-lohed, 

 doubly crenate-serrate, smooth ; corymbs umbellate, terminating the short 

 branches, mostly pubescent; follicle smooth, inflated. 2 -4-seeded. Var. 

 FEREOGINEA, Nutt. Leaves smaller (!' 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 Tennessee. April- May. Shrub 3 -5 high, the old bark 

 separating in thin layers. Flowers white. 



4. SPIIL33A, L. MEADOW-SWEET. 



Calyx 5-cleft, persistent. Petals 5, roundish, imbricated in the bud. Sta- 

 mens 10-50. Follicles 3 - 12, 1 - 10-seeded. Styles terminal. Seeds without 

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

 Flowers white or rose-color, sometimes dioecious. 



* Shrubs : flowers perfect. 

 - Flowers corymbose. 



1 S. COrymbosa, Raf. Leaves undivided, 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. 



H -J Flowers panichd. 



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

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

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

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

 pale purple. 



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

 from lanceolate to oblong-obovate, sharply and doubly serrate ; follicles not 

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

 2 - 5 high. Flowers white. 



* * Perennial herbs : leares lobed or compound. 



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

 leaves coarse, pinnately lobed, the terminal lobe very large, reniform, 7-9- 

 parted, with the divisions incisely 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, 5 - 8 high 

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

 rose-color. Petals and sepals often in fours. 



5. S. Aruncus, L. Flowers dioecious, in elongated filiform panic-led 

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



