49^ FLORA. 



7. Rubus strigosus Michx. Wild Red Raspberry. (T. F. f. 1894.) 

 Stems shrubby, biennial, branched, 5-20 dm. high, usually densely clothed with 

 veak glandular bristles, or the older stems with small hooked prickles. Leaves 

 pinnately 3-5-foliolate; leaflets ovate or ovate-oblong, acuminate, sharply and 

 irregularly serrate or slightly Lobed, rounded at the base, 3-7 cm. long; inflores- 

 cence racemose or paniculate, loose; pedicels slender, curving in fruit; flowers 

 8-12 mm. broad; petals white, ascending, about equalling the spreading acuminate 

 sepals; fruit elongated-hemispheric, light red, white in a cultivated form. In 

 dry or rocky situations, Newf. and Lab. to Manitoba, Br. Col., N. Car., and N. 

 Mex. May-July. 



8. Rubus neglectus Peck. Purple Wild Raspberry. (I. F. f. 1895.) 

 Intermediate between the preceding species and the next. Stems recurved and 

 rooting at the tip, glaucous, sparingly bristly and prickly; leaflets ovate, sharply 

 and irregularly incised-serrate, 2-8 cm. long; inflorescence corymbose, rather 

 compact; pedicels erect or ascending even in fruit; flowers 8-10 mm. broad; 

 petals white, erect; fruit nearly hemispheric, dark-red or purple (yellowish in a 

 cultivated form). In dry or rocky soil, N. Eng. to Penn. June-July. Fruit ripe 

 July-Aug. 



9. Rubus occidentalis L. Black Raspberry. Thimble-berry. Black- 

 cap. (I. F. f. 1896.) Very glaucous; stems cane-like, recurved, often rooting at 

 the tip, sometimes 3-4 m. long, sparingly armed with hooked prickles, rarely 

 slightly glandular-bristly above. Leaves pinnately 3-foliolate (rarely 5-foliolate); 

 leaflets ovate, acuminate, coarsely incised-serrate; flowers as in the preceding 

 species; inflorescence corymbose, compact, usually only terminal; pedicels short, 

 ascending or erect in fruit; fruit purple-black, depressed-hemispheric. Quebec 

 and Ont., to Ga. and Kans. May-June. 



xo. Rubus laciniatus Willd. Cut-leaved Blackberry. Stem ascending, 

 2-3 m. high, pale green or purplish, angled, with stout flat recurved prickles; 

 the young shoots villous. Leaves pedately 3-5-foliolate; leaflets often again pin- 

 nately 3-5-foliolate, laciniate or deeply incised and serrate, villous beneath; inflo- 

 rescence cymose-paniculate; flowers 2-3 cm. wide ; petals white, obovate-cuneate, 

 often lobed at the apex; sepals more or less foliaceous and lobed; fruit large, black, 

 hemispheric. Escaped from cultivation in S. N. Y. and Penn. ; also in Ore. and 

 Wash. Supposed to be a native of Europe. June-Aug. 



11. Rubus cuneifolius Pursh. Sand Blackberry. Knee-high Black- 

 berry. (I. F. f. 1901.) Shrubby, 3-10 dm. high, much branched, armed with 

 stout straight or recurved prickles. Leaves 3-5-foliolate ; leaflets thick, rugose 

 above, 2-5 cm. long, obovate or rarely oval, obtuse, dentate, especially above the 

 middle, the terminal one cuneate; peduncles mainly terminal, 2-5-flowered; flow- 

 ers white or pinkish, nearly 2.5 cm. broad ; petals exceeding the sepals; fruit 

 brownish-black, often 2.5 cm. long, delicious. In sandy soil, Conn, to Fla., Mo. and 

 La. May-July. 



12. Rubus nigrobaccus Bailey. High Bush Blackberry. (I. F. f. 1898.) 

 Shrubby, branched, glandular-pubescent ; stems erect or recurved, 1-3 m. long, 

 armed with stout recurved prickles. Leaves 3-5-foliolate; leaflets ovate or ovate- 

 oblong, acute or acuminate, coarsely and unequally serrate, pubescent beneath, the 

 terminal one stalked ; inflorescence mainly terminal, racemose-paniculate; bracts 

 small; flowers 18-25 mm - broad; petals white, obovate, much exceeding the sepals; 

 fruit black, pulpy, 12-25 mm. long. In dry soil, N. Eng. to Fla. and Ark., mostly 

 at low altitudes. May-June. Fruit ripe July-Aug. A form with small white fruit 

 occurs in Michigan. [R. villosus Gray and of 111. Fl. ; not Ait.] 



R. nigrobaccus satfvus Bailey is a form with short flower clusters and fewer and larger 

 drupelets. 



13. Rubus Allegheniensis Porter. Mountain Blackberry. (I. F. f. 

 1899.) Glandular, resembling the preceding species. Stems rather more slender, 

 red <>r purple, very prickly, erector ascending, 6 25 dm. high. Leaflets usually 

 narrower, ovate -lanceolate; fruit 16-28 mm. long. 6-8 mm. in diameter, much le<s 

 pulpy and of a peculiar flavor; racemes sometimes very long, and pubescent; 

 drupelets oblong when dry. In drysoil, Ont. and northern X. Y, to Penn, and 

 Va.. mostly at high altitudes. May-July. 



