Mr. Woods on the British Species of Rosa. 217 



also differs in having the leaves pubescent on both surfaces: to 

 this may be added, that the aculei are more slender and less 

 curved tlian is usual in this tribe, though quite enough so to show 

 that they belong to it ; and they are also more numerous, and the 

 petioles are very rarely unarmed. The entire pinnae of the calyx 

 seem to be constant in this Rose, a circumstance seldom to be 

 met with in those which resemble it most nearly. Its closest affi- 

 nity is certainly with R. colUna ; but a careful attention to the 

 above marks will be sufficient to distinjjuish it. 



o 



20. Rosa dumetorum. 

 R. stylis distinctis, receptaculis ellipticis bracteas superantibus, 



aculeis uncinatis, foliolis simpliciter serratis utrinque hirsu- 



tis. 

 R. dumetorum. Thuilliers Fl. cles Env. de Paris, 250. 

 R. canina |. Desvaux J. de Rot. ii. 115. 



Frutex 4 — 6-pedalis. Rami debiles, diffusi, olivacei, aculeati ; aculei parviusculi, unei- 

 nati, subbinato-stipulares sparsique. Petioli pilis aculeisque uncinatis, interdum 

 etiam glandulis instruct!. Stipulce lineares, apicem versus glauduloso-serratse, raar- 

 gine pilosae, eae florilius propiores ceteris pauUilni latiores, denique foliis deficientibus 

 in bracteas lanceolatas parvas, latitudine partem, longitudine nequaquain, stipulas 

 siiperantes, immutatae. Foliola 5 vel 7, sublucentia, par supcrius et foliolum impar 

 ceteris majora, impar quoque etiam foliolis paris superioris semper latius, nunc ellip- 

 tica acuta, nunc subrotunda acuminata, simpliciter serrata, subtus nervo-pilosa v«I 

 juuiora sericeo-pilosa, pagina utraque hirta. Pedunculi 1 — 3, glabri, pilisve sparsis 

 tantum instruct!, bracteas plerumque suba:quantes, interdum superantes. Receptaculum 

 ellipticum vel ovatum, nunc fiiscum, nunc floribus decidentibus olivaceum, glabrum. 

 Calycis foliola triangulari-elliptica, acuminata, plerumque glabra, rarius pilosa, com- 

 posita ; pinnis confertis lanceolatis hie illic incisis, margine saepius integerrimis. Flares 

 plauiusculi, petaiis rubesceutibus. Styli subinclusi, stigmatibus in globulum villo- 

 sum congestis, Frucius late ovatus vel subglobosus, glaber, ruber. 



Hedges in the southern counties occasionally ; seldom in any 



abundance. 

 YOL. XII. 2 F This 



