Mr. Woops on the British Species of Rosa. 233 
the R. prostrata, Lam. et Dec. Fl. Fr. vi. 536, which scems to be 
a variety of this species with shining persistent leaves; but the 
latter circumstance has not occurred to me in any English speci- 
men. 
This Rose has hitherto been separated from its nearest affini- 
ties on account of the shape of the fruit: but this has been done 
erroneously ; for though the full-grown fruit is sometimes nearly 
globular, the receptacle, while the plant is in flower, is decidedly 
ovate, except occasionally in starved specimens: it is generally 
longer in the cymes of flowers than when solitary, differing in 
this respect from R. canina and its allies, which have usually 
among the cymes rounder receptacles than those of tlie solitary 
flowers. | i 
— The midrib of the leaflet is sometimes furnished with hairs: 
this peculiarity will occasionally occur on some branches and 
not on others of the same plant. 
The habit of this Rose is a low bush with long trailing shoots 
frequently covered with a profusion of flowers opening quite flat. 
The buds are faintly tinged with red, but the expanded petals are 
I believe always white. Mr. Sabine has what he considers as a 
double variety of R. arvensis, which retains the blush coloür in 
the flowers, and is extremely beautiful. In this the serratures of 
the leaves are furnished with glands which have the appearance 
of double serratures, as in R. provincialis, R. gallica, R. damascena, 
and R: alba, «°° : 1350.98 3E ge ^ erg on 
. In the long shoots of this plant the aculei frequently appear to 
consist of a short mucro on an expanded base. As the ramifica- 
tions are repeated, it often happens that the expanded base die 
minishes in proportionate size, and the mucro becomes a hooked 
prickle more round and'slender than in the family of R. canina ; 
the smallest prickles are even sometimes quite straight. á 
— VOL, XII. 2 H The 
