i 7 6 ANNALS OF SCOTTISH NATURAL HISTORY 



think, perfectly right in making it a variety of R. ccssia, Sm., 

 in regard to which I shall have something to say further on. 



Without attempting in the meantime to define the exact 

 position of R. sub-coriifolia further than to say that there 

 can be no doubt that it is more nearly allied to R. coriifolia, 

 Fr., than to any other species or sub-species, I submit the 

 following description of it, drawn from the study of a con- 

 siderable series of specimens from different and pretty widely 

 separated localities in Perthshire. 



R. sub-coriifolia. Bush varying from four or five to 

 seven or eight feet in height, usually having the flowering 

 branches more elongated and less erect than in R. coriifolia. 



Prickles rather thinly scattered, uncinate with lengthened 

 base, often nearly wanting on the flowering branches. 



Leaves usually very glaucous in hue. Leaflets five or 

 seven, the lower smaller, and all set close together ; the 

 terminal varying in shape and breadth, usually ovate or oval, 

 acute or somewhat obtuse at the point, at the other end 

 rounded or wedge-shaped, upper surface glabrous or glab- 

 rescent, lower hairy, chiefly on the ribs. Serratures copiously 

 compound and beset with glands. Petioles downy and more 

 or less glandular. 



Stipules broad, with lengthened acute divaricate points, 

 more or less downy on the back, the edges fringed with 

 glands, which sometimes are spread more or less thickly over 

 the dorsal surface. 



Bracts large, twice the length of the peduncle, similar in 

 clothing to the stipules but more rarely glandular. 



Peduncles short, about ^ of an inch long, less than half 

 the length of the fruit, glabrous. 



Flowers solitary, or up to four in a cluster, very pale pink. 



Fruit fully f of an inch long, less than half an inch at 

 its broadest part, which is above the middle, narrowed below, 

 obovate or pyriform. Styles hairy, forming a rounded mass. 



Sepals rather longer than the fruit, the main ones pinnate 

 with usually rather slender pinnae, downy on the back, the 

 edges more or less fringed with glands, which sometimes 

 extend to the dorsal surface, closely reflexed after flowering, 

 disarticulating as the fruit reddens, which occurs about the last 

 week of August or the first week of September. 



