194 THE BRITISH FERNS. 
This plant appears to be not uncommon, and is widely dispersed 
both in the East and in the New World. The known British 
habitats are as follows :— 
Peninsula.—Cornwall: Penryn, abundant, G. Dawson ; Devon- 
shire : Torquay ; Barnstaple, C. Jackson. 
Channel.—Sussex : Hastings, and also in other parts, Dr. Allchin ; 
Uckfield, N. B. Ward. Wiltshire: Salisbury. 
Thames.—Kent: Tunbridge Wells, @. B. Wollaston, and else- 
where. Surrey: Albury; Chobham. 
Severn.— Worcestershire. Shropshire: Linley, near Broseley, 
G. Maw. 
Humber.—Y orkshire. 
Tyne.—Durham. 
Lakes.—W estmoreland : Ambleside, Miss Beever. 
S. Wales.—Cardiganshire : Hafod, E. Newman. Pembrokeshire : 
Castle Malgwyn, W. Hutchison. 
N. Wales.—Denbighshire: Ruthin, T. Pritchard. Montgomery- 
shire, Mrs. Walker. Merionethshire: Dolgelly, at the base of 
Cader Idris, T. Hankey. 
E. Highlands.—Stirlingshire: Polmont ; Inversnaid. Perthshire: 
Pass of the Trosachs, 7. M.; Ben Lawers, T. M.  Forfarshire: 
Clova Mountains, J. Backhouse. 
W. Highlands.—Dumbartonshire: Tarbet. Argyleshire: Glen 
Gilp, Ardrishiag ; Loch Ballenoch ; Glen Croe, T. M.; Cairndow; 
Glen Kinglass. Isle of Arran. 
Ulster.—Donegal : Killybegs, R. Barrington. 
Connaught.—Shgo : Lough Gill, R. Barrington. Galway: Kyle- 
more, R. Barrington. Mayo: Ballyeroy Mountains, R. Barrington. 
Leinster.—Wicklow: Glencullen, and near Upper Lough Ed 
R. Barrington; near the Dingle, Dr. Allchin. 
Munster —Kerry : Cahir Conree, near Tralee, Dr. Allchin. 
Channel Isles.—Guernsey, C. Jackson. Jersey. 
It is, in part, from the Indian forms of this plant, called Aspidium 
patentissimum by Dr. Wallich, and differing from our European form 
in nothing except the darker colour of their scales, and their some- 
what larger growth, that Prof. Braun has constituted his genus 
Dichasium, which is characterised by having ‘ biscutelloid’ indusia, 

