Trees; a handbook of forest-botany for the woodlands and the laboratory . of lamina, &c, the characters of the shoots—, bristly, prickly, or glandular, arching and rooting,&c.—and certain peculiarities of the flowers and fruit.] tt Leaflets relatively small, the whole leafelongated and pinnate. Stipules adnate andbroad or foliaceous. Shoots cylindrical. © Prickles stout, recurved, and more or lesscompressed like claws, with broad bases. I~l Leaflets not fragrant, nor evidentlyglandular on the veins; surface usuallyglabrous and margins serrate. Rosa canina, L. Dog Rose (Fig. 40). Lar
Trees; a handbook of forest-botany for the woodlands and the laboratory . of lamina, &c, the characters of the shoots—, bristly, prickly, or glandular, arching and rooting,&c.—and certain peculiarities of the flowers and fruit.] tt Leaflets relatively small, the whole leafelongated and pinnate. Stipules adnate andbroad or foliaceous. Shoots cylindrical. © Prickles stout, recurved, and more or lesscompressed like claws, with broad bases. I~l Leaflets not fragrant, nor evidentlyglandular on the veins; surface usuallyglabrous and margins serrate. Rosa canina, L. Dog Rose (Fig. 40). Large scram-bling bush, with long arching terete shoots. Pricklesequal, hooked. Leaves with 5—7 leaflets, each more orless oval or ovate, glabrous and sharply serrate; or some-times glabrous above and downy beneath, and bi-serrateor even triply serrate. Rarely with a few inconspicuousglandular hairs on the venation. May be dark green andshining above and glaucous or matt beneath; and theterminal leaflet may be obovate. Purplish brown inautumn. DOG ROSE 171. —e Fig. 40. Dog Hose, Rosa canina. Typical compound, pinnate leaflet; 1> rachis; c adnate stipules; d midrib of terminal leaflet;e midrib of lateral leaflet; / secondary ; g tertiaries and terminals;li petiolule of leaflet, p. 170 (Ett). 172 DOG ROSE: SWEET-BRIAR Venation pinnate-looped; about half-a-dozen fairlystrong secondaries leave each side of the midrib at wideangles—about 70°—and soon curve forward, forming moreor less distinct loops. Tertiaries numerous, at acute anglesfrom the outer sides of the secondaries, and rapidlyforming an extremely fine network. Secondaries about^—^ the length of the midrib apart. [Rosa canina is very variable as regards pubescence,glands on the venation, bristles, and strength and curva-ture of prickles; the simple or double serrature and shapesof the leaflets, &c, and a number of sub-species andvarieties are described. The rule is that it is distinguished from R. sp
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