452 RUBUS 



raspberry." It is R. ILLECEBROSUS, Focke, a native of Mount Fuji-yama, 

 Japan. It is not, however, shrubby, its stems dying to the ground in 

 winter. 



A few of the more important British types of Rubi are here briefly 

 described as representing the main groups in Mr Moyle Rogers' 

 monograph : 



R. CARPINIFOLIUS, Weihe and Nees. A spreading shrub of vigorous habit, its long 

 stems strongly angled, and armed with numerous strong, yellowish, decurved or straight 

 prickles. Leaves with normally five leaflets, soft with greyish down beneath. Terminal 

 leaflets oval, with a tapered point, the blade about three times longer than the prickly 

 stalk. Flowers with pure white petals, produced in large, very prickly panicles. Fruit 

 of good quality, large, with the sepals spreading. Widely spread in Britain, and frequent 

 in the wild parts of Kew and other parts south-west of London. Belonging to the same 

 group is 



R. RHAMNIFOLIUS, Weihe and Nees. This differs in having the blade of the 

 terminal leaflet only twice the length of the stalk. This and the other leaflets are of 

 thick, leathery texture, covered beneath with a felt of grey-white down. Flowers white 

 or pale pink, cup-shaped, borne in slender panicles. Sepals whitish with down, reflexed. 

 Widely spread in South Britain. (RHAMNIFOLII group.) 



R. CORYLIFOLIUS, Smith. A shrub with roundish glaucous stems that are free, or 

 nearly free from down or hairs, but armed with irregularly scattered, awl-shaped prickles. 

 Leaflets usually five, sometimes six or seven, broad or overlapping, leathery, covered 

 beneath with a grey or greenish felt. Flowers white or pinkish (the petals broadly 

 ovate), produced on an irregular panicle, the stalks of which are felted and often 

 glandular. Fruit of no edible value ; the sepals felted and reflexed. A very common 

 bramble in Great Britain and Ireland, allied to the dewberry (R. caesius), and one of the 

 connecting links between that species and the other groups, as shown by the glaucous, 

 nearly or quite glabrous stems. (C^ESII group.) 



R. HIRTUS, Waldstein. A prostrate, sometimes climbing shrub, with the stems 

 covered with stalked glands and hairs, and furnished with straight, bristle-like prickles 

 Leaflets usually three, occasionally five, on vigorous stems, broadly oval, rounded at 

 the base, shortly pointed, coarsely toothed, dark green and bristly above, very hairy 

 on the veins beneath. Flowers white, produced in large panicles, the main stalk 

 furnished with violet-coloured or purple gland-tipped hairs and bristles. Fruit globular ; 

 the sepals erect. A common species in Great Britain, very characteristic of the 

 group with glandular hairs and bristles on the inflorescence. (GLANDULOSI 

 group.) 



R. LEUCOSTACHYS, Schleich (R. vestitus, Weihe\ A shrub with prostrate or climbing 

 stems, angular, hairy, and clothed with felt ; armed with long, straight prickles. Leaflets 

 five, rather small, but broad in proportion to their length ; the margins wavy, shallowiy 

 and evenly toothed ; upper surface bristly and glossy, lower one covered beneath with 

 a soft yellowish or grey felt. Flowers (with rounded bright pink or white petals) 

 produced in long cylindrical panicles, the stalks felted like the- stems and leaves. Sepals 

 reflexed. Fruit sweet, insipid. A common species in Great Britain, distinguished by its 

 round petals and densely felted parts. (VESTITI group.) 



R. MUCRONATUS, Bloxam. A shrub with low, arching, or prostrate stems, which are 

 hairy, glandular, bristly, and armed with small, needle-like prickles. Leaflets five, 

 overlapping, very bristly above, thinly hairy beneath, evenly and shallowiy toothed, the 

 terminal one being very broadly obovate, heart-shaped at the base ; the broad flat apex 

 relieved by a short abrupt point. Flowers pinkish, produced on a long, rather cylindrical 

 panicle ; the main and subsidiary flower-stalks covered with dense felt and hairs, and 

 furnished also with a few slender deflexed prickles and stalked glands. Sepals of fruit 

 more or less reflexed. Widely spread through the British Isles, and especially abundant 

 in Scotland. (EGREGII group.) 



R. PULCHERRIMUS, Neumann. A shrub with arching or prostrate stems, often of a 

 reddish hue and hairy, armed with numerous straight or deflexed prickles. Leaflets five 

 or six, rarely seven, rather leathery, finely toothed, bristly and grey-green above, covered 

 beneath with a pale felt. Flowers bright pink or pinkish, produced on a long, slenderly 

 pyramidal panicle, the main and secondary flower-stalks prickly and with stalked glands. 

 Sepals reflexed ; stamens longer than the style. Fruit of very good quality. This 



