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THE FERN WORLD 
winter. Filu-focmina is, however, our only native species of 
the genus Athyrium, which consists of Ferns distinguished 
by having kidney-shaped indusia attached by one side to 
the frond, whilst the other side is free and fringed with little 
hairy segments. 
Distribution. — The Lady Fern is found at various eleva- 
tions reaching to three thousand feet above the sea in each 
of the four quarters of the world. In Europe it inhabits, 
besides the British Islands, Belgium, Crete, Croatia, France, 
Germany, Greece, Holland, Hungary, Italy, Lapland, 
Portugal, Russia, Scandinavia, Spain, Switzerland, and 
Transylvania. It occurs in the islands of the Mediterranean ; 
in the Caucasus and in the Ural Mountains; in India and 
Russian Asia ; in Algiers ; in the Canary group of islands, 
and in Madeira. It is found throughout North America, 
including British Columbia, Canada, and the United States. 
It occurs in Vera Cruz and in Cuba, as well as in the northern 
part of South America, including Venezuela ; also in Bolivia. 
It is also found in Australia. In England it occurs in 
the counties of Bedford, Berks, Buckingham, Cambridge, 
Cornwall, Cumberland, Derby, Dorset, Devon, Durham, 
Essex, Gloucester, Hants (including the Isle of Wight), 
Hereford, Hertford, Kent, Lancaster, Leicester, Monmouth, 
Norfolk, Northumberland, Nottingham, Oxford, Rutland, 
Salop, Somerset, Stafford, Suffolk, Sussex, Warwick, West- 
moreland, Worcester, Wilts, and York. In Wales it occurs 
in Anglesea, Brecknockshire, Carmarthenshire, Carnarvon- 
shire, Denbighshire, Flintshire, Glamorganshire, Mont- 
gomeryshire, and Pembrokeshire. In Scotland it is found in 
Aberdeenshire, Argyleshire, Banffshire, Caithness, Cromarty, 
Clackmannanshire, Dumbartonshire, Dumfriesshire, Edin- 
burghshire, Fifesliire, Forfarshire, Invernessshire, Kirkcud- 
brightshire, Lanarkshire, Morayshire, Perthshire, Renfrew- 
shire, Roxburghshire, Stirlingshire, Sutherlandshire ; in the 
