MILAN — Application of topical or both topical and oral polypodium leucotomos extract (PLE) was associated with significant reversal of adverse skin changes in patients with severe actinic keratoses ...

This native plant grows just as well in a garden bed as it does on a dead tree trunk or log. What: Almost omnipresent in the crooks of big-leaf maples throughout the forests of the maritime Pacific ...

Leaf mass per area (LMA) is one of the key features that correlates with the ecological performance both of seed plants and ferns. For ferns LMA is at the lower end of the range for seed plants and ...

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 ...

IN two recent publications 1,2 on the cytogenetics of “Polypodium vulgare” the situation in Europe has been made fairly clear. There are three distinct species (perhaps ecospecies), one of which, the ...