106 THE SUBSECTION EU-CANINE) OF THE GENUS ROSA 
Rosa PRUINOSA 
Baker in Review of British Roses, p. 27 ass 
sik. Centos flat, te green above, and thinly hairy all 
‘over when young, glabrous when mature, still more glaucous and 
hairy all over beneath. Terminal broadly ovate, roundish or even 
cordate at base, serrations open and furnished with one or two 
glandular teeth each side. Petioles villous and copiously setose. 
ote pe and bracts hairy on back and setoso-ciliate.. Peduncles 
alyx-tube and fruit subglobose like last [dumetorwm| but 
sical ore setoso-ciliate. This is Mr. Robertson’s cesta, but 
differs cotbidoembty from Mr. Borrer’s Argyleshire plant figured as 
R. cesia Sm. in E. B.” 
the Monograph, p. 230, Mr. Baker a. this is like dwme- 
torum, but very glaucous, the serrations d compound, the 
secondary teeth gland-tipped, and petioles slightly glandular. 
Specimens I have seen seem to approach canescens and incana 
I y seen one example collected or named by Mr. 
Baker, from Tynedale. It has rather slender prickles, quite small 
leaflets on flowering-shoots but large ones on barren stem, rounded 
or subcordate at the base, thinly pubescent but very grey above, 
densely pubescent beneath, toothing quite double. Petioles with 
very short glands. Peduncles quite of average length, with 2 or 3 
glandular sete. Fruit small, ovoid, sepals emcee glandular- 
setose on the back. Style in a dense woolly hea 
There is little other material of this species. Th combination 
of very grey-green, glaucous, fully biserrate leaflets, reflexed 
sepals, and woolly head of styles are its leading characteristics, 
but its leaflets are often narrow and close-set as in cesia. Fruit 
usually not globose, and peduncles naked. I have not seen it 
recorded from the Gowtinat, and it is not mentioned by Désbulise 
Rosa CHSIA yar. INCANA 
_ Borrer, ex Hooker’s British Flora, ed. 3, p. 242 (1835). 
“8 ft. Leaves very glaucous and slightly downy above, trod 
so beneath, as are also petioles and backs of stipules, on which, a 
well as on edges of the serrations and of the calyx are lites 
small glands, and a few are sometimes found on the veins beneath 
the leaves near point. Peduncles beset with hairs, ros sete. 
Calyx-segments bare on back, very wooll reading 
widely or even recurved after flowering, and ‘anatase till tri’ is 
ape ; pinne broad and short. Fruit bluntly oblong, equally 
each end like an olive. Prickles strongly hooked, with sR a 
ably elongate bases.” 
His description of cesia is very similar to that of — am 
he emphasises the “‘ stigma is a round prominent mass 
incana differs 
from his type mainly in its persistent sepals ei 
