cryptogamic

adj

1. (not-comparable)Of or pertaining to the cryptogams.

   “A number of cryptogamic plants swim about at random in the waters, among which the most interesting, perhaps, in our present state of knowledge, is the sargasso, or gulf-weed of voyagers (Fucus natans), which is found in the Gulph of Florida, and some other parts of the ocean floating in masses or fields, many miles in length.”