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A NEW BEITISH RUBUS. 

 By the Rev. W. Moyle Rogers, F.L.S. 



An opportunity this year of studying afresh living bushes of 

 the bramble dealt with in this paper has satisfied me that it ought 

 to be described and named, with a view to its taking a distinct 

 place in our list. This has been a growing conviction with me 

 for many years, strengthened by the unanimous opinion of all 

 whom I have consulted, including the late Augustin Ley. Only 

 my great unwillingness to enlarge our list has so long kept me from 

 making the attempt. 



The earliest specimens of this bramble seen by me were 

 collected by the late Mr. Beeby in the Witley (Surrey) neighbour- 

 hood in 1885. For these Mr. J. G. Baker had suggested the name 

 B. pallidus, Dr. Focke's comment on which was, "Not 'pallidus. 

 I suppose it will prove to be a var. of B. rosaceus," "or a nearly 

 allied form." It was in 1890, at Witley and Tilford, that the 

 Rev. E. S. Marshall first showed me the living plant (some years 

 before I knew of Mr. Beeby 's specimens). We then thought it 

 rosacean, but found ourselves unable to place it under any known 

 form of aggregate B. rosaceus Wh. & N. We saw it again in 

 several places in the same neighbourhood in 1894 ; and in the 

 following year he wrote of it as " the common sand form of 



B. rosaceus in West Surrey." In 1900 I found it abundantly in 

 the Haslemere neighbourhood, and traced it thence by Linchmere 

 and Fernhurst to Rogate at the north-west end of Sussex, and to 

 Liphook and Woolmer Forest, in North Hants. In 1901 Mr. 

 Marshall also sent me specimens from between Graifham and 

 Heyshott, at the north-eastern end of West Sussex. Other Surrey 

 specimens sent to me have been from (1) Milford Common, 1908, 

 L. Gumming ; and (2) Queen's Cottage grounds, Kew, 1909, Jack- 

 son and Rolfe. I have also seen 1909 specimens collected by Mr. 



C. E. Britton on Hosey Common, W. Kent ; and living bushes 

 which I cannot separate from it on Chinnor Hill, Oxon. As it is 

 chiefly, if not exclusively, at home on coarse sandy and gravelly 

 soils, I gladly accept for it Mr. Marshall's suggestion of the 

 appropriate name glareosus, hitherto apparently unused in Buhus. 

 I have seen no Continental specimens. 



Rubus glareosus, sp. nov. Stem long, arcuate-prostrate, 

 bluntly or acutely angled, glaucous, dull purplish-red in exposure, 

 densely or rather densely clothed with short clustered hairs, irre- 

 gularly scattered tubercles and unequal but mostly very short 

 stalked glands and pricklets, with an occasional gland-tipped 

 acicle on the faces. Prickles many, fairly strong and suhequal, 

 with large compressed bases, almost confined to the angles. Leaves 

 3-5-nate-^ecZa^e ; 5-nate ones very few ; 3-nate ones with lateral 

 leaflets gibbous or deeply cleft. Leaflets narroio obovate, opaque 

 and subglabrous above, paler and hairy on the nerves beneath, 

 with petioles armed and clothed like the stem and very prickly 

 petiolules and midribs. Terminal leaflet about three times as 



