ROSACEH. (ROSE FAMILY.) 125 
the lowest ones 5-lobed, the lobes acute or acuminate, toothed and serrate ; calyx- 
lobes caudate ; flowers large, rose-color ; fruit reddish. — Rocky woods on the 
mountains of Georgia, and northward. June - August. — Stem 3°-4° high. 
Flowers 2/ in diameter. 
2. R. occidentalis, L.  Glaucous; stem prickly, but otherwise very 
smooth, bending ; leaves 3 —5-foliolate; leaflets thin, ovate, acuminate, coarsely 
serrate or sparingly toothed, white-downy beneath ; petals white, shorter than the 
reflexed short-caudate hoary calyx-lobes ; fruit black. — Borders of woods along 
the mountains, Georgia and northward. May. — Stem biennial, 5° - 8° long. 
* ** Heads of achenia oval or oblong, persistent : receptacle juicy. 
3. R. villosus, Ait. Tall, shrubby; stem erect or bending, armed, like 
petioles and peduncles, with stout recurved prickles, the branches and 3 - 7-folio- 
late leaves soft-hairy or nearly smooth ; leaflets ovate or oblong, doubly ser- 
rate; racemes leafy below, bracted above; sepals acuminate, much shorter 
than the obovate white petals; fruit large, oblong, black.— Swampy thickets, 
common. April. — Stem 4°- 10° high. 
4. R. cuneifolius, Pursh. Shrubby, armed with stout prickles; stem 
erect; branches and leaves tomentose ; leaves trifoliolate, with the leaflets cune- 
ate-obovate, unequally serrate towards the summit, tomentose and white beneath ; 
racemes few-flowered ; petals white ; fruit ovoid, black. — Old fields, Florida to 
North Carolina, and westward. uo Hum 29-49 high. Leaves and im : 
smaller than in the. preceding. - 
5. R. trivialis, Michx. Blirabby, and armed with souk vtraight or re- 
curved prickles and bristly hairs; stem prostrate, slender ; leaves 3- 5-foliolate, 
partly persistent; leaflets smooth, oblong-ovate or obovate, acute, sharply serrate ; 
racemes few-flowered, leafy below, mostly longer than the leaves ; flowers large, 
white ; fruit black.— Dry sandy soil, Florida to North Carolina, and westward. 
April. 
6. R. hispidus, L. Somewhat shrubby, and armed with weak bristle-like 
prickles; stem slender, prostrate ; leaves trifoliolate, persistent ; leaflets obovate, 
obtuse, coarsely serrate, smooth; racemes many-flowered, slender, longer than 
the leaves ; flowers small, white ; fruit of few large and black achenia. (R. obo- 
valis, Miche. ) — Cold shady swamps among the mountains, Georgia and north- 
ward. May and June. — Fruit sour. 
14. ROSA, Tourn. Rose. 
Calyx 5-cleft, the urn-shaped tube becoming fleshy in fruit. Petals 5. Sta- 
mens numerous, inserted with the petals on the throat of the calyx. Ovaries 
numerous, hairy: inserted on the thin receptacle that lines the inner surface of the 
calyx-tube. Styles nearly included. Achenia bony. — Prickly shrubs. Leaves | 
"equally pinnate. Stipules united with the petioles, Flowers showy. 
