CYSTOPTEEIS AEGUSTaTA. 
107 
Sent. 678, to have been acquainted, like Mr. Dickson, with our 
Oystea ( Oystopteris) angustata under that name; and he quotes 
Gerardo rightly, justly objecting to Plukenet's t. 179. /. 5. 
Lightfoot’s description is excellent, though he submits, as I 
have formerly done, to Haller, Weis, and others, who con¬ 
sider it as a variety of our C. fragilis. The late Mr. Davall 
took it for Haller's n. 1705; but that plant, with many 
errors in the synonyms, is certainly Aspidium dilataium. Our 
Cyslea ( Oystopteris) angustata may ben. 1708 of Haller, but 
his references are confused. Mr. Hudson, on seeing Mr. 
Davall’s specimens of the Fern in question, declared it very 
different from his own Polypodium rhteticum, which indeed 
is Aspidium dumetorum. I have little scruple in referring 
the obscure and long-disputed figure of Clusius, reprinted 
in Gerarde, as above quoted, to this Cystea (Oystopteris) 
angustata, though the draughtsman has omitted the ultimate 
divisions of the leaflets, well enough expressed by Hoff¬ 
mann and Villars. I have never received this Fern from 
Wales, but if it be not Ray's Poly podium ilvense, it is wanting 
in the Synopsis. The wooden cut of Dalechamp, copied in 
J. Bauhin, and quoted doubtingly by Bay, should rather 
seem to be the totally different Acrostichum Marantic, as 
Bauhin himself suspected." 
The cultivation required by this Fern is the same as 
for Oystopteris alpina, stated at page 102. It requires, 
however, more shade, and does well under the shadow 
of other plants in a cool greenhouse. 
