The Polypodium vulgare complex (Polypodiaceae) comprises a well-studied group of fern taxa whose members are cryptically differentiated morphologically and have generated a confusing and highly ...

This is a preview. Log in through your library . Abstract Members of the Polypodium vulgare complex are so similar morphologically and chromosomally that delimiting diploid species and determining the ...

Calagula, calagualine, ferns, Polypodiaceae (family), Polypodium cambricum, Polypodium decumanum, Polypodium vulgare, samambaia. Extracts of fern species (family Polypodiaceae) have been used ...

There is a truly remarkable plant in my garden. It grows on top of a dry-stone wall, with nothing more nutritious to feed on than limestone dust. Shrivelled to a crisp in early summer, it recovers by ...

Norway: roots used to obtain flour for bread or porridge. This site is provided to Mr. Freedman by Dr. Jules Janick, Emeritus Professor and Former James Troop Distinguished Professor of Horticulture.

This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...