: | bliquely triangular, stalked, often bipinna 
; " " "ud, die upper ones ell жемін, pinnata or. йола), 
iu P И: 1 wer pair larger on the posterior 
| intelligible, and though extensive is not unwieldy. Mr. Newman would seps from u hrec 
plants above referred to, under the name of Gy pi 
||| remarked, propose „uch earlier date a nearly correspon 
] 
| and о had adopted this group under the name of Prqupterie as а genus, in his admirabl 
||| Fitcum, distinguishing it by a character which w 
||| the rhizome, if constant, namely, that of having medial sori, or, in other words, the г 
| which produce, at the same time, both medial and terminal sori, so that the character is not distinctiv 
| The three species referred to possess, howew amon, a peculiarity of some importan ти 
|| The chief differences be P. Robertianum and P; Dryopteris have been "uU 
rhizome affords a ready me 
