122 THE BRITISH ROSES 
fruit, which may be smooth or hispid. This and three or four 
other species are the only ones known to me in the group which 
are described as having acicles under the inflorescence. 
GROUP OF ROSA AGRESTIS. 
This group stands in much the game relation to that of 
fi. micrantha as the R. elliptica group does to R. Eglanteria. It 
agrees with the I. micrantha group in the lax arching habit of 
its members, their uniform prickles, biserrate leaflets, longish 
peduncles, reflexed and deciduous sepals, and usually, though not 
invariably, glabrous styles; while they differ primarily in their 
smooth peduncles, also in their leaflets being smaller and narrower, 
and acute at both ends, or at least at the base. The flowers are 
usually white, except sometimes in R. sepium. On the Continen 
it has about as many members as the R. elliptica group; but in 
Britain, although rare, it is more frequent than that group, both 
in species and individuals. 
Key to Bririsn Species. 
Leaflets glabrous beneath, or thinly hairy on midribs only ......... 2 
1) Leaflets pubescent all over beneath, or at least on secondary 
rves 3 
eer eee eas 
tis Savi. 
Leaflets very small. Fruit small, ellipsoid. Styles quite glabrous 
R. agresti 
2 Leaflets larger. Fruit more ovoid, rather large. Styles occasionally 
RR. sepium Thuill. 
slightly hispid . 
| Styles glabrous or nearly so. Fruit globose. Leaflets small 
" ee . belnensis Ozan. 
Styles quite hispid R. inodora Fries. 
ROSA AGRESTIS 
Savi, Fl. Pisana, p. 475 (1798). 
Rose with germen and peduncles glabrous. Flowers sub- 
umbellate. Leaflets oval, dentate-serrate. Stem and petioles 
Support themselves, with many diffuse interlacing branches, 
_ covered with very strong curved prickles. Leaflets 3-5 or 7, oval 
' oval-lanceolate ; dent : iry and deep 
20 lular and reddish beneath. Petioles minutely 
side. Flowers scented, in an umbel, 3 or 4 
