102 
FERNY COMBES. 
whole plant a starved and linear appearance. The 
stem of this fern is very commonly of a dull pur- 
plish red. Usually found in company with Filix- 
foemina, with which it was for many years con- 
sidered identical. 
Athyrivm marinum is a form of the Lady Lem, 
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. 
Allosorijs crispus. Farsley 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 
Fleclinvm or Fteris. 
A Mountain Eem, growing profusely on the 
drifted trapstones of Cader Idris, and found near 
Challacombe, Devon, by Mr. Ward. 
Ctstopteris eragilis. Brittle Bladder Fern. 
(Plate VI. 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. 
