204 ROSACEAE 



0. Loddon. Risely. Finchampstead. Arborfield. Waltliani. 



Maidenhead. 



M. Crepin says that our British Rosa arvatica as represented in 

 Herbaria, is a ' melange de plusieurs especes.* 



Var. FRONDOSA, niihi. R. canina, var. frondosa, Baker, 1. e. R. ohiusi- 

 J'oUa, \SLV. frondosa, Lond. Cat. ed. 9, 1895. 



2. Ock. Near Wootton. 3. Pang. East Ilsley, Compton, W. M. 



Rogers. Hanipstead Norris. 4. Kennet. Catmore, W. M. Rogers. 

 West Ilsley. Lambourn. 

 M. Crepin has placed almost all my specimens, named frondosa, 

 under the group of dumetorum. He does not consider, I believe, 

 that /ronrfosrt of Baker is identical vf'iih frondosa of Steven. 

 R. dumetorum is found in all the bordering counties. 



R. verticillacantha, Merat, Fl. Par. 190 (1812). 



R. canina, var. verticillacantha, Auct. Angl., not of Merat according to 



Deseglise. Syme, E. B. iii. 219. Fl. Oxf. 108. 

 Native. Septal. Hedges. Local, but scattered through all the 



districts. Shrub. May-June. 

 First recorded for Berkshire by the author in Rep. ofBot. Rec. Club, 1881. 



1. Isis. Cumnor. 2. Ock. Long Wittenham, the author, see Rep. 



Bot. Rec. Club, 188 1. Wootton. 3. Pang. Near Basildon. 



Bradfield. 4. Kennet. Mortimer, Tufnail. One bush at 



Peasemore {Kosinciana}, W. M. Rogers. Theale. 5. Loddon. 

 Winkfield. Stubbing's Heath. 

 Var. ASPERNATA (Dd'seglise in Journ. Bot. (1874") 171, as a species). 



3. Pang. Near Streatley. 5. Loddon. Near Winkfield. 

 Var. LATEBROSA (Deseglisc in Journ. Bot. (1874) 170, as a species^. 



2. Ock. Near Marcham. 



Eoses •which belong to the section with bristly peduncles and a more 

 prominent stylar colvTmn have been recorded as B. Kosinciana^ Besser, and 

 R. collina, Jaeq., neither of which is now considered to be British. Onr 

 plants belong to the group verticillacantha, which is represented in all the 

 bordering counties. 



R. g-lauca, Vill. ex Lois, in Desv. Journ. de Bot. ii. (1809') 336. 



R. Reuteri, Godet in Renter, Cat. PL Genev. (1861) 68. R. canina, 

 var. glauca, Desv. 1. c. (1813; 116. R. canina, \a,Y. Reuteri, Baker in 

 Linn. Soc. Journ. xi. (1869) 233. Nyman, 236. 

 Native. Septal. Hedges. Local and rather rare. Shrub. May-July. 

 First recorded by the author in Rep. of Bot. Rec. Club, 1881, 



1. Isis. Near Appleton. 



2. Ock. In the hedge by Tubney Wood, see Rejj. of Bot. Rec. Club, 



sub nom. R. Reuteri, 1881 ; also a form with pubescent petioles at 

 Tubney. 



