Trees; a handbook of forest-botany for the woodlands and the laboratory . pecially silvery silky whenyoung. Stipules persistent, filamentous, small, opening early: autumn leaves yellow. Venationof leaflets pinnate. (/3) Leaflets not more than 1—2 cm. angular and furrowed, minute. Sarothamnus Scoparius, Koch. Broom (Fig. 34).Switch plant, with erect, angular and furrowed, glabrousshoots, bearing trifoliolate leaves below on distinct petioles,and sessile, obovate to lanceolate, entire, unifoliolate leavesabove. Leaflets elliptic or obovate, silky-pubesce
Trees; a handbook of forest-botany for the woodlands and the laboratory . pecially silvery silky whenyoung. Stipules persistent, filamentous, small, opening early: autumn leaves yellow. Venationof leaflets pinnate. (/3) Leaflets not more than 1—2 cm. angular and furrowed, minute. Sarothamnus Scoparius, Koch. Broom (Fig. 34).Switch plant, with erect, angular and furrowed, glabrousshoots, bearing trifoliolate leaves below on distinct petioles,and sessile, obovate to lanceolate, entire, unifoliolate leavesabove. Leaflets elliptic or obovate, silky-pubescent whenyoung, especially beneath, then glabrescent, 10—15 x 3—6mm., dark green. Stipules minute. Venation leaves on some branches reduced to minute scalesor obsolete. Dead leaves brown. (ii) Leaves not silky, with prickles on thepetioles and ribs; leaflets large, coarse, andirregularly serrate. (a) Prickles setaceous, deflexed but unequal,and not curved and claw-like; shootsprostrate, terete, and glaucous. Leafletspale green on both sides. 160 DEWBERRY. Fig. 34. Broom, Saroihamnus flower, p. 159 (Wo) 1 flowering shoot; Rubus fruticosus, var. Ccesius, L. Dewberry. Avariety or sub-species of the Blackberry, remarkable forits habit and the waxy bloom on the shoots, and thebristle-like prickles, &c, as well as for the prevalence oftrifoliolate leaves; some leaves may, however, be 5-folio-late. Leaves about 7—17 cm.: leaflets 3—9 x 25—7 leaflet on long petiolule, ovate or rhomboid, or DEWBERRY: BLACKBERRY 161 somewhat three-lobed; laterals sub-sessile, oblique, ovate,and may be somewhat bilobate; unequally and coarselyserrate. Autumn leaves purplish. Venation pinnate with about 6 pairs of strongsecondaries, nearly straight to the margin, where theyend in teeth, as do also the branches given off fromtheir outer sides. Secondaries about one-fifth the lengthof the midrib apart, their outer branches forming cross-ties
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