Matteuccia struthiopteris (strutbräken)
Here you can see the sterile leaves of M. struthiopteris, a species that occurs in North America,...
Read MorePosted by Fernando Matos | Jan 7, 2014 | Cultivated, Ferns, Observations
Here you can see the sterile leaves of M. struthiopteris, a species that occurs in North America,...
Read MoreA Small Number of Gametophytes with Gametangia and Stunted Sporophytes of Antrophyum obovatum Baker (Pteridaceae): The Suppression of Functional Sporophyte Production by Prezygotic and Postzygotic Sterility. http://dlvr.it/Rr9wwH
Based on an estimate of 51 families worldwide. Total number of families on this website = 50.
Based on an estimate of 337 genera worldwide. Total number of genera on this website = 280.
Based on an estimate of 11,916 species worldwide. Total number of species on this website = 1271.