100 ENGLISH BOTANY. 



triangular, rarely oblong-triangular, pinnatifid, very thinly clothed 

 with long hairs above and beneath ; lobes roundish or oval-obovate, 

 entire ; rachis with very few scales, and mid-veins of the pinna? with 

 none. Indusium saucer-shaped, divided into numerous filiform 

 segments, which are much longer than the undivided portion and 

 incurved over the sori. 



On ledges of rock, very rare and local. In Carnarvonshire, on 

 Clogwyn-y-Garnedd, Snowclon, on precipices facing east and north- 

 west ; rocks facing the east above G-las-Lwyn (L. Clark) ; Moel 

 Lachog, Pass of Llanberis (Mr. L. Clark and Mr. T. Moore). Perth- 

 shire, Ben Chouzie, near Crieff (Dr. Balfour) ; Ben Lawers (Mr. 

 Dickson and Mr. W. Wilson) ; and in addition to these stations, Dr. 

 Buchanan White has seen it on Larig-au-Lochan, Cam Creag, and 

 Ben Laoigh ; it is reported from Craig Challiach and Mael-dun-Crosk ; 

 I have gathered it on Catjaghiamman and on the mountains which 

 separate Glen Lochy from Glen Dochart. Glen Isla, Clova, Forfar 

 (Mr. J. Roy). 



England, Scotland. Perennial. Summer, Autumn. 



Plant growing in tufts of smaller size than in W. Ilvensis, and 

 with the fronds more persistent and usually smaller, 1 to 2 inches 

 being the average length, and 6 inches the largest I have seen, of 

 which the petiole is generally less than one-half. Breadth of lamina 

 1 to | inch. Pinna? shorter and broader at the base than in 

 W. Ilvensis, with fewer and shallower lobes ; and above all, without 

 the thick covering of reddish hairs and scales which are on the under 

 side of the fronds of W. Ilvensis. 



Mr. Roy's specimens from Glen Isla have broader fronds, with 

 longer, narrower, and more deeply divided pinna?, more like those of 

 W. Ilvensis than of W. hyperborea, but they are destitute of scales on 

 the mid-veins of the pinna? ; but some of the Moffat specimens of 

 W. Ilvensis are almost destitute of these scales, while in others they 

 are abundant, so that I think it very probable those authors are right 

 who treat them as merely subspecies. Mr. Wollaston informed the 

 late Mr. Newman that in W. hyperborea the frond has its clusters of 

 capsules very conspicuous, even in its youngest state and imme- 

 diately it begins to unfold, and that its fronds are nearly persistent. 

 In W. Ilvensis the sori are not apparent until the frond has attained 

 its full size, and the fronds wither in autumn. 



Alpine Woodsia. 



