204 



HARD WICKE'S SCIENCE- G OSS IP. 



prostrate when unsupported ; the leaflets are broad, 

 doubly dentate, serrate, or biserrated, and remark- 

 ably imbricated, owing to the lateral pair being sub- 

 sessile, and the basal ones entirely so ; rugose above, 

 pubescent below;* sepals ovate and tomentose ; 

 petals rotund white, sometimes pale blush (in pur- 

 pureas they are pinkish) ; the panicle always corym- 

 bose ; its flowering is both early and prolonged. It 



are somewhat elliptical. They may be found on damp 

 shady places and ditch-banks. We have gathered 

 them in a lane between the "Spaniards" (Hamp- 

 stead Heath) and Hendon. 



III. Glandulosi. This section will also admit 

 of subdivision, a. Transition of the prickles into 

 aciculce, seta, and hairs, abrupt ; that is to say, the 

 prickles are clearly distinct from the other appen- 



Fig. 157. Portion of stem and trans- 

 verse section of Rubus ccesiits. 



Fig. 158. Ditto of R. cerylifolius. 



Fig. 159. Ditto of R. glandulosus. 



m. 



Fig. 160. Ditto of ./v. rudis. 



Fig. 161. Ditto of R. umbrosus. Fig. 162. Ditto of R. kochleri. 



Fig. 163. Ditto of 

 R. discolor. 



is a common hedge bramble about London. On the 

 Finchley-road, near the station, for instance, and in 

 the lanes leading to Willesden, it is plentiful. The 

 leaves are often ternate by abortion ; that is to say, 

 the lateral pair are two-lobed, a peculiarity by no 

 means confined to this species. R. Balfourianus and 

 R. althaifolius are straggling forms belonging to this 

 section, with large flat leaves, usually ternate, and 

 large arsius-like flowers. In althaifolius, the leaves 



* The pubescence of the under surface of the leaflets is 

 seated on the veins ; even when glabrous below th; principal 

 veins are never quite free from hairs. In brambles with strong 

 arching stems, such as the nitidi and larger species of glandulosi 

 and villicaules, the veins and pedicels are also furnished with 

 small hooked prickles. 



dages ; type, R. glandulosus. Stems subterete, 

 trailing when unsupported ; of a dingy dark-greenish 

 or dark-red hue ; prickles small, straight, weak ; 

 aciculre, seta?, and hairs copious ; leaves dull and 

 green, slightly pubescent below ; leaflets ternate, 

 rarely quinate ; of a rhomboidal or ovate form, with 

 biserrated margins ; sepals very glandular and fur- 

 nished with a long acumen ; petals narrow, white or 

 pale blush ; the panicle broad-topped ; pedicels very 

 slender, prickly, and glandular. Frequent in hedges, 

 in the lanes and roadsides about London. R. Gun- 

 tha-i is a form of it with large, flat, thin, dark green 

 leaves ; leaflets ternate ; straggling, decumbent, less 

 prickly stem, and a long, open, leafy, few-flowered 



