RARER, FORMS OF RUBUS LATELY FOUND IX DORSET. 75 



counties, but I suspect that states of R. plicatus have been generally 

 mistaken for it. Judging from its situation in Dullar Wood, this 

 plant should be looked for in damp woods. In this county it can 

 hardly be confined to the tiny wood where alone I have yet seen it. 

 In the adjoining larger Foxholes Wood I did not see a trace of it. 

 I possess in my herbarium specimens from England (Dorset), 

 Brunswick, Hanover, and Scandinavia, besides a somewhat doubtful 

 plant from Switzerland (Ticino). 



Rubus erytlirinus, Genev. So long ago as 1880 the late Mr. T. 

 K. A. Briggs wrote, in the "Flora of Plymouth," "we have a 

 bramble very common about Plymouth, certainly of the Khamni- 

 folii group, and allied to Lindleianus, which will, I believe, have 

 to be described as a new species, should it not be found to be 

 identical with some continental one." Dr. Focke has since told us 

 that it is the Rubus erytlirinus of Genevier, a plant of western 

 France. I believe it will be found somewhat commonly in southern 

 England. Messrs. Briggs and Focke have collected it at Arne, at 

 Branksome Chine, and at Daggons, in this county. I am inclined 

 to refer here also a bramble which is exceedingly abundant in 

 Dullar Wood and in parts of Foxholes, though neither Mr. Briggs 

 nor the Kev. Moyle Rogers would accept it as absolutely identical 

 with the Plymouth plant. It requires further study. R. erytliri- 

 nus has been recorded from Cornwall, Devon, Somerset, Hants, 

 Gloucestershire, Herefordshire, and Suffolk. According to Mr. 

 Briggs it may be distinguished from R. Lindleianus by being much 

 less prickly, by having larger and broader flat or convex leaves 

 with dentate, or obscurely dentate serrate, divisions ; when any 

 waving is present it is only close to the edges. Also by having 

 the panicle more pyramidal and less cylindrical, with distant 

 branches below, and by far the larger number separate from one 

 another, "by having flowers with pink or tinted, not milk-white 

 petals, and by producing large fruit. The dentition of the leaves is 

 much coarser and more irregular than in R. rhamnifoUus, and the 

 under surface is less frequently felted. R. rhamnifoUus also has 

 white flowers. See "Journal of Botany," 1890, p. 204. 



