[OS THE JOURNAL OF BOTANY 



are by far the most frequent. In Scotland again, according to 

 Mr. Barclay's collection, hairy glaucous forms seem to be most 

 prevalent. Amongst these it is interesting to find a subspecies 

 not as yet found in Scandinavia, which we have named B. glauci- 

 formis Almq. subspecies prolong atula, and which is described in 

 the sequel. It belongs to Almquist's subgroup Halogense, so 

 called because its members are found only in the vicinity of 

 the sea-coast. No hairy subspecies of this group has up to 

 the present been found in Scandinavia. 



Several hairy subspecies with compound leaf -teeth, occurring 

 frequently in Scotland, are specially remarkable for their sub- 

 foliar glands. These are usually confined to the midrib and 

 secondary nerves, but in some cases are spread over the whole 

 under-surface (B. glauciformis subspecies glaucifrons A. & M., 

 defirmata Mts., inserta Mts., decurtatula Almq., insertiformis 

 Almq.). In this respect the Scottish Afzelianae are much more 

 differentiated than the Scandinavian, which very rarely exhibit 

 glands on the nerves. As regards serration, the Scottish forms 

 generally have the teeth smaller and narrower. 



In spite of the differences above-mentioned there is no diffi- 

 culty in identifying the Scottish forms with those of Scandinavia, 

 according to the principles set forth by Dr. Almquist. Where 

 any determinations are doubtful, the doubt is to be ascribed to 

 defective material. 



Besides the above-mentioned new subspecies belonging to the 

 Halogenae — B. glauciformis, subspecies prolong atula Almq. k Tr. — 

 other°new subspecies were found in Mr. Barclay's collection. One 

 of these is green-leaved glabrous, the other green-leaved hairy, both 

 corresponding to the glabrous glaucous form B. glauca Vill. sub- 

 species Icevigata Winsl. For these Dr. Almquist proposes the 

 names respectively of B. virens Wahl., subspecies scotica Almq. 

 & Tr., and B. virentiformis Almq., subspecies Barclayi Almq. & Tr. 



The diagnoses of the three new subspecies may be given as 

 follows : — 



Rosa glauciformis Almq., subspecies prolongatula Almq. 

 & Tr. — Leaflets rather thin, pubescent on under surface, glaucous 

 dull green, the uppermost on the flowering branches ovate 

 elongate, acuminate, narrow below ; the middle leaves with 

 leaflets obovate, prolonged or elliptical, roundish at the top, 

 narrow or cuneate at the base ; the lowest leaves with leaflets 

 prolonged obovate, cuneate based. Teeth acuminate, deep, close ; 

 of the upper leaflets a little outward turned, of the middle nearly 

 straight, of the lowest incurved. Prickles weak, projecting, feebly 

 curved. Fruit pyriform. 



Rosa virens Wahlenb., subspecies scotica Almq. & Tr. — 

 Leaflets glabrous, light green, very firm, almost cartilaginous, 

 the uppermost on the flowering branches ovate, sublanceolate, 

 acuminate ; middle leaves with leaflets elliptical, the base narrow 

 roundish or cuneate ; lowest leaves with leaflets broad obovate, 

 cuneate based. Teeth of the upper and middle leaflets deep, 



