170 ON THE DUMETORUM GKOUP OF KUBI IN BRITAIN. 



rescence closely coryUfoUan, whereas the dense setse and aciculi of 

 diversifoUus remove it much further from corylifolius. Leaves ternate ; 

 terminal leaflets obovate or oblong-ovate, acuminate, narrowed to their 

 base; basal leaflets unequal, ovate-acuminate, externally lobed : all in 

 character much as the stem leaflets, thick, flat, and grey- or green- 

 hairy-felted beneath. Panicle less leafy to the apex, and more open 

 than diversifoUus ; axillary branches and their peduncles longer, more 

 racemose in growth, and more divaricate. Sepals ovate-attenuate, 

 hairy, densely felted, hardly aciculate, generally reflexed, or faintly 

 adpressed to the mature fruit. Petals pale pink, smaller, narrower, 

 and much flatter than divei'sifolius, obovate, clawed, fairly broad, but 

 not overlapping. Anthers salmon-coloured or golden-yellow, shorter 

 than the styles (but longer than the styles in diversifoUus'). Fila- 

 ments white; styles greenish ; fruit of few (7-14) drupels, smaller than 

 in diversifoUus, and rather more evenly ripened. 



The whole plant a smaller, neater, more felt-leaved, and less prickly 

 form than diversifoUus, many steps nearer coryUfoUus. The growing 

 leaflets are strangely concave. Those of y convex if anything. 



Stations : — Trout Hall, Plumley, Cheshire, whence I have described 

 the plant, and general in that district. The brilliancy of the anthers 

 may be only local here. Twycross, Leicestersliire, sent me by Mr. 

 Bloxam as R. dumetorum, y. tomentosus, 11. G. North York, com- 

 mon, — this being solely the plant intended in " North Yorkshire " by 

 the name tuherculatus, and the plant referred to under this name by 

 Prof. Babington in 'British Rubi,' p. 283. A form also of this with 

 incise or lobate-serrate leaflets from Gormire, North Yorkshire. 



Rubns dumetorum, (3. tuberculatus, Bab. (Plate CVl.) ; stem arcuate- 

 prostrate, bluntly angular, sulcate ; prickles subpatenl, stout, strong, 

 broad-based, fairly many, not confined to stem-angles ; aciculi and setae 

 fewer than in any var. except concinnus ; the primary prickles being 

 nearly equal, tlie secondary prickles few, the transition into setae and 

 aciculi is much more abrupt than in diversifoUus ; stem also clothed with 

 faint not conspicuous pubescence ; leaves quinate as often as ternate, 

 not usually ternate (the case in Cheshire diversifoUus) ; terminal leaflet 

 broadly obovate-acuminate or cuspidate, cordate ; intermediate leaflets 

 obovate-acuminate, imbricate ; basal leaflets ovate, nearly sessile, 

 slightly imbricate ; all leaflets fairly thick, coriaceous, finely coated 

 with hairs but hardly felted beneath, doubly and rather irregularly 



