









104 THE BRITISH FERNS. 
Rutherford ; stone walls near Dalwhinnie, and on the neighbouring 
mountains. Morayshire. 
W. Highlands.—W estern Inverness-shire: Ben Nevis; Guarrow ; 
Ben Aulder. Argyleshire. Dumbartonshire: Tarbet, Loch Lo- 
mond. Arran: Goat Fell, J. R. Cobb. Skye: Ben-na-Caillich. 
Isle of Mull. 
N. Highlands.—Ross-shire. Sutherlandshire. 
W. Isles.—Harris : Roddal. 
Ulster.— Antrim: Carrickfergus. Down: Sleive Bignian ; Mourne 
Mountains. 
Leinster.—Louth : Carlingford Mountain. 
Munster.—Clare : Black Head, E. T. Bennett. 
The species is widely dispersed over Europe in Alpine and sub- 
alpine situations, occurring to the north, in Lapland, Norway, Sweden, 
and Denmark; again, in Great Britain and Ireland, in Germany, 
Hungary, Switzerland and France; and thence extending southwards 
into Spain and Italy. According to Sibthorp it grows on Mount 
Olympus in Asia Minor. It is found at Sitka, and Isle Royal in 
Lake Superior, in the latter habitat assuming a rather more slender 
form. Kaulfuss reports it from Unalaschka, an island in the North 
Pacific Ocean; but this plant, which Ruprecht names Allosorus 
foveolatus, is probably rather identical with the Cryptogramma acros- 
tichoides. The East Indian Cryptogramma Brunoniana approaches 
near to the European A. crispus; indeed, Sir W. J. Hooker without 
hesitation includes in his C. crispa, both Cryptogramma acrostichoides 
and C. Brunoniana, the former as the American, the latter as the 
Indian form. We have already mentioned the difference in the 
receptacles which induces us to keep them distinct. 
This Fern is not difficult of culture under conditions which protect 
its fronds from the sun, and its roots and caudex from stagnant or 
accumulated moisture. It is very beautiful when in a. thriving 
state, being small, bright green, and elegantly divided. Its size 
adapts it thoroughly for a Wardian case, and it is equally appro- 
priate for culture in a cold frame, or Fern house ; indeed we have 
somewhere seen it mentioned as the pet pit pot-Fern. In its wild 

