ROSACEJE. 121 



latus, but, judging from his remarks in Jour. Bot. vii. N.S. 115, he 

 would, I conclude, now rather put it under the aggregate macroj^hyllus. 



247. R. Sprengelii, Weihe. 

 a. Borreri, Salter. 



Native; on hedge -banks, commons, and bushy waste spots. 

 Rather common. July, August. 



0. I. In bushy spots in the vicinity of Rouse farm-house near Pillaton. 



D. III. Hedge by the Devonport and iNIanadon Road near Pounds. Vale 

 between Whitleigh and Woodlands. Near Knackersknowle 

 and Roborough. Near Beer Alston, and by the road thence to 

 Ta^^stock. A much more prickly and setose form, with leaflets 

 remarkably dentate, m a bushy waste spot below Woodlands, 

 near the St. Budeaux and Tamerton Foliot Road. Plants 

 very similar to the last below a sniall copse between Tavistock 

 and Horrabridge, and m a hedge near Huckworthy Bridge. 



IV. By Plymbridge Road, near Rock ; also in the vale below Rock 



House, and by the Dartmoor tramway at Shalaford, Egg 

 Buckland. Coleridge Lane, near Knackersknowle. Derriford. 

 A plant considerably different from the type, occurs in plenty 

 in and about the Plym valley between Bickleigh and Plym 

 Bridges. It grows also at Derriford, by Plymbridge Road, 

 between Elfordleigh and Shaugh, near Bickleigh, on Ringmore 

 Down and elsewhere near Sheepstor. 



V. By a tributary of the Yealm very near the bridge above Dala- 



raore ; also in other spots on the border of Dartmoor near 



Cornwood. 

 Quite typical Borreri seems not to occur anywhere about Plymouth, 

 and the two forms here placed under Borreri differ considerably from each 

 other. The one that occurs so plentifully in the Plym district ought, I 

 think, to be distinguished by a name, and might be called var. dentati- 

 folius. Extreme forms of it differ greatly in appearance from the type, 

 ha\ing very large compound panicles T\-ith longer and less uniform 

 prickles, intermixed with numerous aciculi. The leaves are very coarsely 

 dentate, giving a marked feature to the plant. The hairs of the barren 

 stem are sometimes so few as to give it the appearance of belonging to 

 one of the Rhamnifolii. Its prickles are long, sharp, and slightly de- 

 clming. The petals are usually white, as they are also in our other 

 Plymouth form of Borreri, Careful observation of this plant for some 

 years past, and the discovery of forms somewhat intermediate between it 

 and t}^ical Borreri, have led me to place it under this Bramble as a 

 variety. It is very near R. melanoxylon, Miill. et Wirtg., Herh. Rubor. 

 No. 181, placed by Wirtgen with the Speatabiles. It seems exactly 

 intermediate between this melanoxylon and typical Borreri. 



