122 ROSACES. (ROSE FAMILY.) 



10. R. ClincifolillS, Pursh. (SAND BLACKBERRY.) Shrubby (l-3 

 high), upi;'t;/it, nrnrd /rit/i stout, named prickles { brti/if/ilcts and lower surface of 



'i/tis/t-tcool/y ; leaflets 3-5, wedge-obovate, thick ish, serrate above; 

 p'-duueles 2 - 4-flo\vered ; petals large. Sandy woods, S. New York to Virginia 

 and southward. .May- July ; ripening its well-flavored black fruit in August. 



11. R. trivia I is, Michx. (Low BUSH-BLACKBERRY.) Shrubby, procum- 

 bent, bristly and prickly ; leaves evergreen, coriaceous, newly glabrous ; leaflets 3 (or 

 pedately 5), ovate-oblong or lanceolate, sharply serrate; peduncles 1-3-flow- 

 ered ; petals large. Sandy soil, Virginia and southward. March - May. 



15. ROSA, Tourn. ROSE. 



Calyx-tube urn-shaped, contracted at the mouth, becoming fleshy in fruit. 

 Petals 5, obovate or obcordatc, inserted, with the many stamens, into the edge 

 of the hollow thin disk that lines the calyx-tube and bears the numerous pistils 

 over its inner surface. Ovaries hairy, becoming bony achenia in fruit. . Shrub- 

 by and prickly, with odd-pinnate leaves, and stipules cohering with the petiole: 

 stalks, foliage, &c. often bearing aromatic glands. (The ancient Latin name.) 

 * Styles cohering in a column, as long as the stamens. 



1. R. SCtigcra, Michx. (CLIMBING or PRAIRIE ROSE.) Stems climb- 

 ing, armed with stout nearly straight prickles, not bristly ; leaflets 3 5, orate, acute, 

 sharply serrate, smooth or downy beneath; stalks and calyx glandular; flowers 

 corymbcd; sepals pointed ; petals deep rose-color changing to white; fruit (hip) 

 globular. Borders of prairies and thickets, Ohio to Illinois and southward. 

 July. A fine species, the only American climbing Rose ; the strong shoots 

 growing 10 -20 in a season. 



# # Styles separate, nearly included in the calyx-tube : petals rose-color, 



2. R. Carolina, L. (SWAMP ROSE.) Stems tall (4 -7 high), armed 

 with stout /looked prickles, not bristly ; leaflets 5-9, elliptical, often acute, dull 

 above and pale beneath ; stipules narrow ; flowers numerous, in corymbs; calyx and 

 peduncles glandular-bristly, the former with leaf-like appendages; fruit (hip) 

 depressed-globular, somewhat bristly. Low grounds, common. June- Sept. 



3. R. lucida, Ehrhart. (DWARF WILD-ROSE.) Stems (l-2 high), 

 armed with mm/iuil bristly prickles, which are mostly deciduous, the stouter per- 

 sistent ones nearly straight, slender; leaflets 5-9, elliptical or oblong-lanceolate, 

 shini)ig aboiv, sharply serrate; stipules broad; peduncles 1 -3-flowercd, and wirh 

 the appendage*! calyx-lobes glandular-bristly ; fruit depressed -globular, smooth 

 when ripe. Common in dry soil, or along the borders of swamps. May - 

 July. R. nitida, Willd., is a smooth and narrow-leaved form. 



4. R. bltfnda, Ait. (EARLY WILD-ROSE.) Nearly unarmed, or with 

 scattered straight deciduous prickles (l-3 high); leaflets 5-7, oral or oblong, 

 r////.sr, jxtl,- on both siibs and minutely do/my or hoary beneath, serrate; stipules 

 large; f lowers 1 -.'>, the pcd'imJcs and ca/y.r-tube smooth and glaucous ; fruit glo- 



rownrd with the persistent erect and connivcnt entire calyx-loins. 

 KIM-US and bunks, Vermont to Penn. and Wisconsin, chiefly northward. May, 

 June. Petals light rose-color. 



