ASPLENIUM. 
129 
Filix-foemina, It was then transferred to Aspidium, 
under the name of Aspidium Filix-foemina ; and subse- 
quently by other botanists it has been called Asplenium 
Filix-foeminay which latter name is still generally given 
to it by those who do not adopt the genus Athyrium, 
Genus VIL ASPLENIUM, or SPLEENWOBT. 
The British Aspleniums are small evergreen Ferns, 
with long narrow single sori lying in the direction of the 
veins which traverse the fronds ; and by these marks they 
may be known from all other indigenous Ferns, excepting 
■the Ceterachy which latter is readily distinguished from 
them by having the back of its fronds coated with brown 
scales, among which the sori are hidden. The genus is 
the type of the tribe Aspleniecey which consists of Ferns 
having the elongate masses of fructification attached along 
the side of the veins, and covered by an indusium of the 
same elongated form as the sori themselves. The Asple- 
niums are known from their nearest allies, the AthyriumSy 
by the latter having hippocrepiform sori, and the free 
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