Bulletin - Virginia Native Plant Society. (The Society, 2010)

Bulletin - Société des amis des sciences naturelles de Rouen. (1904)

Bulletin - Société des amis des sciences naturelles de Rouen. (1908)

Bulletin - Société des amis des sciences naturelles de Rouen. (1913)

Bulletin - New York State Museum. (University of the State of New York, State Education Dept, 2003)

Bulletin - National Museum of Canada. (National Museum of Canada, 1935)

Bulletin - National Museum of Canada. (National Museum of Canada, 1938)

Bulletin - National Museum of Canada. (National Museum of Canada, 1940)

Bulletin - Société des amis des sciences naturelles de Rouen. (1877)

Bulletin - National Museum of Canada. (National Museum of Canada, 1945)

Bulletin - Société des amis des sciences naturelles de Rouen. (1914)

Bulletin - National Museum of Canada. (National Museum of Canada, 1948)

Bulletin - Société des amis des sciences naturelles de Rouen. (1922)

Bulletin - National Museum of Canada. (National Museum of Canada, 1950)

Bulletin - National Museum of Canada. (National Museum of Canada, 1951)

Bulletin - National Museum of Canada. (National Museum of Canada, 1952)

Bulletin - National Museum of Canada. (National Museum of Canada, 1955)

Bulletin - National Museum of Canada. (National Museum of Canada, 1957)

Bulletin - National Museum of Canada. (National Museum of Canada, 1958)

Bulletin - National Museum of Canada. (National Museum of Canada, 1961)

Bulletin - British Pteridological Society. (the Society, 1973)

Bulletin - British Pteridological Society. (the Society, 1979)

Bulletin - British Pteridological Society. (the Society, 1980)

Bulletin - British Pteridological Society. (the Society, 1981)

Bulletin - British Pteridological Society. (the Society, 1982)

Bulletin - British Pteridological Society. (the Society, 1983)

Bulletin - British Pteridological Society. (the Society, 1984)

Bulletin - British Pteridological Society. (the Society, 1985)

Bulletin - British Pteridological Society. (the Society, 1986)

Bulletin - British Pteridological Society. (the Society, 1987)

Bulletin - British Pteridological Society. (the Society, 1988)

Bulletin - British Pteridological Society. (the Society, 1989)

Bulletin - British Pteridological Society. (the Society, 1990)

Bulletin - British Pteridological Society. (the Society, 1991)

Bulletin - British Pteridological Society. (the Society, 1992)

Bulletin - British Pteridological Society. (the Society, 1993)

Bulletin - British Pteridological Society. (the Society, 1994)

Bulletin - British Pteridological Society. (the Society, 1995)

Bulletin - British Pteridological Society. (the Society, 1996)

Bulletin - British Pteridological Society. (the Society, 1997)

Bulletin - British Pteridological Society. (the Society, 1998)

Bulletin - British Pteridological Society. (the Society, 1999)

Bulletin - British Pteridological Society. (the Society, 2000)