208 MK. J. G. baker's MONOGKAyH OF BRITISU HOSES. 



tion nearly, but not quite, simple ; the peduncle densely aciculate 

 and glanduloso-setose ; the calyx-tube globose, naked, the main 

 sepals not more than half an inch long, with one or two setaceous 



pinna? on each side. 



Described by Lindley from an Irish specimen still in the Hook- 



erian herbarium, the exact station not known. 



Var. WiLSONi {Borrer). 



R. WiLsoNi, Borrer, Brit. Flora, edit. 3, p. 231 ; E. B, S. 2723. 



An erect bush 2 or 3 feet liigh, with deep vinous purple branches 

 and leaves, and stipules often suffused with the same colour. 

 Prickles as in Sabini. Leaflets often cordate, the terminal 

 ones 12-15 lines long by 8-12 lines broad, naked (when mature) 

 above, thinly hairy on the ribs below, but scarcely at all glandu- 

 lose ; the serrations moderately open, quite simple ; the aciculi 

 of the petiole few and slender. Flowers 1-3, full pink; the pe- 

 duncles moderately aciculate and setose ; the tube naked, or very 

 nearly so ; the sepals either all simple, or the largest with one or 

 two minute setaceous pinnae ; the fruit with more of a tendency 

 than in Sabini to an ovato-urceolate shape, when well developed 

 8-9 lines long by half an inch broad. 



Banks of the Menai, near Bangor (Wihonly Webbl, BIo:cam\), 

 and just the same plant gathered by Dr. Moore at Umbra rocks, 

 CO. Derry, 



It will be seen by the descriptions that the extreme forms 

 placed here run into one another by very gradual stages. Do- 

 niana is like reduced ^nolUssimaj with crowded unequal prickles, 

 whilst JVilsoni touches close upon rubella^ and Mborei approaches 

 some of the Rubiginoscd, It is noteworthy that a plant so widely 

 spread in Britain, and with so many varieties, should be so rare 

 upon the Continent. It is known only in two widely separated 

 tracts — the provinces of K'amur and Luxemburg, in Belgium, 

 and upon Mount Saleve, near Greneva. There is a variety in 

 Belgium (var. subnuda, Crepin, Notes, ii, p. 25 ; Dumort. Kos. 

 p. 42) not yet found in Britain, with smooth peduncles and 

 calyx-tube, copiously compound serratures, leaves naked on the 

 upper surface, densely glandular beneath, but only a little hairy 

 on the veins. The Sicilian 72. IlecJceliana, Tratt. Mem. ii. p. 85, 

 Guss. Syu. i. p. 5G2, is an almost precise counterpart of Dayiianu 

 in general habit ; but the prickles are uniform and curved, and 

 the major sepals copiously compound. 



