ASPLENIUM MARINUM. 45 
membrane, or cover of the fructification is uninter- 
rupted, even, of a pale brown, and opens towards the 
mid-rib of each leaflet. The surface of each capsule of 
the fructification is curiously netted, and of a chesnut- 
colour. 
This has been known as one of our native Ferns aa 
long since as the time of Gerarde, 1597; at least so we 
conclude, from his saying that it " groweth under 
shadowy rocks, and craggy mountains in most places." 
This, however, is giving it too wide a range, and his 
editor, Johnson, in 1633, confines himself to saying, 
" It grows in the chinks of the rocks by the sea-side in 
Cornwall." Ray found it " on the rocks about Prest- 
holm Island, near Beaumaris, and at Llandwyn, in the 
Isle of Anglesea ; about the Castle of Hastings, in 
Sussex, and elsewhere on the rocks of the southern 
coast." It has also been found on Marsden Bocks, 
Durham; Isle of Man; Black Rocks on the Cheshire 
side of the Mersey; near the Dingle, Liverpool; Hulme 
Stone Quarry, near Warrington ; west coast of Cornwall ; 
Ormeshead, near Bangor ; Nigg, in Ross-shire ; near 
Port Patrick, Wigtonshire; Moray; Isle of Staffa ; 
Fifeshire, Aberdeenshire, and Berwickshire. In Ireland 
it has been found on the Sutton side of Houth Moun 
tain, Underwood Killiney Hill, and other places near 
Derrinane, in Kerry; and frequently on the western, 
and southern coasts. It has been gathered on the rocks 
under the Powder House, Shirehampton, near Bristol, 
where the water is brackish, but Mr. Swete observes 
that " this can hardly be considered a natural station 
