- n Cryptogramma sometimes placed in family Polypodiaceae or Cryptogrammataceae
Century Dictionary and Cyclopedia
- n cryptogramma A small genus of boreal polypodiaceous ferns, the rock-brakes, distinguished from Pellæa mainly by their dimorphic fronds. Two species, C. Stelleri and C. acrostichoides, occur in the northern United States and Canada. The latter and a closely allied European species, C. crispa, are known as parsley-fern.