Ferns pedatum

OCN southern maidenhair Venus hair fern Adiantum pedatum L. 

Various fernanes are reported as constituents of some ferns, e.g. (+)-7- and (-)-8-femene as well as (-)-7,9(ll)-femadiene from Adiantum monochlamys and A pedatum (Pteridaceae). Hydroxylated derivatives are found in lichens such as reti-geric acid A in Lobaria retigera (Sticataceae) and some higher plants, e.g. (-)-7-femen-3p-ol in Rhododendron linearifolium (Ericaceae) and (-)-3p,lip-dihydroxy-8-femen-7-one in Euphorbia supina (Euphorbiaceae). 

The term adiananes stems from the ferns of genus Adiantum (Pteridaceae) from which (-)-5-adianene was isolated. The leaves of Rhododendron simiarum (Ericaceae) were found to contain (+)-5-adianen-3p-ol (Simiarenol). Filicanes are also isolated from ferns 3-filicen-23-al (filicenal) as an example is a constituent of maiden s hair fern Adiantum pedatum. 

Adiantum capillus veneris extract Adiantum pedatum extract Maidenhair fern extract... 

Ageta, H., and K. Iwata Fern Constituents Adipedatol, Filicenal and Other Triterpenoids Isolated from Adiantum pedatum. 10th Sympodium on the Chemistry of Natural Products, Tokyo, Oct. 1966, Symposium Papers, p. 253. 

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