Dec, 1910.] | BOTANICAL SOCIETY OF EDINBURGH 137 
in the north of England; but as R. involuta has the right 
of priority, that name must stand at the head of the group. 
The hybrid, however, is not infrequent in Scotland. In the 
Edinburgh district it occurs at Port Seton and at Ormiston, 
growing near R. hibernica, to be referred to in the sequel. 
I believe further investigation will prove its occurrence in 
other localities. With regard to the distribution of the 
hybrid in Scotland it is interesting to note that Don dis- 
covered it “on a rock on one of the mountains at the head 
of Clova near the limits of perpetual snow.” Hence Don 
named it R. nivalis. One specimen of Don’s plant, thus 
named, is in the herbarium of the Edinburgh Royal Botanic 
Garden, and on the sheet, Prof. Crépin, in his revision of 
the roses in the herbarium, has written “involuta.” 
In 1892 a very interesting and curious form of this 
hybrid was discovered by Mr. Barclay near Auchterarder 
Station, and through his kindness the plant was pointed 
out to me. Specimens were sent to Prof. Crépin, and 
regarding it he reports as follows :—“ It is truly remarkable 
that I have seen nothing like it from the Continent or from 
other localities in the British Isles. Its leaflets are profusely 
glandular below, and have many glands on the upper 
surface ; but what is ee coserdindey is that there are 
numerous long, stiff bristles clothing the pedicels and 
receptacles. At first sight one would imagine it to be the 
hybrid R. pimpinellifolia x rubiginosa (R. echinocarpa, 
Rip.); but this idea cannot be entertained when we look at 
the prickles, which are straight or but slightly curved. 
Moreover, R. rubiginosa is not found in the immediate 
neighbourhood. On the other hand, there is found growing 
beside the hybrid a form of R. tomentosa with leaflets 
glandular on both surfaces, and with pedicels and sepals 
thickly hispid-glandular. Let us not forget to add that 
the axes of this hybrid have quite the armature of the 
ordinary varieties of R. sabini, Woods, that its receptacles 
have ripened, quite full of achenes, and that its sepals are 
persistent.” ! 
Every year this hybrid bears a large crop of well- 
developed fruit, a point on which Crépin lays considerable 
1 “Notes on Scottish Roses,” W. Barclay in “Ann. of Scot. Nat. 
Hist.,” 1896. 
