102 
EEENY COMEES. 
whole plant a starved and linear appearance. The 
stem of this fern is very commonly of a dnil pur¬ 
plish red. Usually found in company with Filix- 
foemina , with which it was for many years con¬ 
sidered identical. 
Athyrium marinwn is a form of the Lady Tern, 
very greatly resembling A. molle , but presenting 
certain differences. It was found in a sea-cave in 
Scotland, and is not recognized as an English plant. 
Allosoetts ceisptjs. Parsley Fern . 
(Plate V. Eig. 1.) 
Eronds of two kinds, barren and fertile, trian¬ 
gular, thrice divided; the edges of the fertile frond 
doubled over the sori, giving the appearance of a 
j BlecJinum or P ter is. 
A Mountain Eern, growing profusely on the 
drifted trapstones of Cader Idris, and found near 
Challacombe, Devon, by Mr. "Ward. 
Cystopteeis eeagilis. Brittle Bladder Fern . 
(Plate YI. Eig. 1.) 
Erond lanceolate, twice divided; stem slender 
and brittle; sori placed near the edge of the pin¬ 
nules. The peculiar characteristic of the Bladder 
Eern is the indusium, or covering of the seed, 
which is shaped like a hood or bladder. 
