68 ASPLENIUM VIRIDE. 
berland; between Widdy Bank and Caldron Snout in 
Durham ; on Mazebeck Scars in Westmorland ; at 
Gordale, Ais-la-beck, Eicbmond, Settle, near Halifax, and 
at Black Bank, near Leeds, in Yorkshire. In Wales, 
on Cader Idris, Crib y Ddeseil, Clogivyn, and Snowdon. 
In Scotland, in Boss- shire, in Cawdor Woods, near 
Nairn, at the foot of Benmore, Sutherlandshire, and all 
over the Highlands. In Ireland, on Turk Mountain, 
Killarney; Ben Bulben, Sligo; and near Lough Eske on 
the Donegal Mountains. The branched sub-variety was 
found, by Mr. Plukenet, on a stone wall in Mr. Owen's 
garden, at Maidstone, in Kent, but we think this must 
have been introduced there. 
Another sub-variety has been found with its leafits 
deeply lobed and cut. 
It scarcely can be doubted that the old botanists and 
herbalists confounded this species with A. triehomanes, 
and we should not have been aware that they had 
noticed it at all, if Gerard, Bauhin, Bay, and others, 
had not mentioned the branched-fronded sub-variety, 
which Gerard called Triehomanes fcemina, whilst Eay 
and others described it as T. ramosum, The first 
botanist recognising it as a distinct species was Cordus, 
who, in 1561, published it in his " Historia Stirpium," 
under the title of Adiantum album, though he gives 
the same woodcut of it as he does for Triehomanes. 
The first to name it Asplenium viride, we believe, 
was Hudson, in his " Flora Anglica," published during 
1762. 
It is usually removed with much difficulty from its 
