49 6 FLORA. 



7. Rubus strigosus Michx. WILD RED RASPBERRY. (I. F. f. 1894.) 

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

 weak 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. 



10. 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 - l n g- I n 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 or purple, very prickly, erect or ascending, 6-25 dm. high. Leaflets usually 

 narrower, ovate -lanceolate; fruit 16-28 mm. long, 68 mm. in diameter, much less 

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

 drupelets oblong when dry. In dry soil, Ont. and northern N. Y. to Penn. and 

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



