Pteridophyta of Peru. Rolla M. Tryon, Robert G. Stolze ; with the collaboration of John T. Mickel, Robbin C. Moran.

n.s. no.27(1991)

Pteridophyta of Peru. Rolla M. Tryon, Robert G. Stolze ; with the collaboration of Blanca León.

n.s. no.32(1993)

Pteridophyta of Peru. Rolla M. Tryon, Robert G. Stolze.

n.s. no.22(1989)

Pteridophyta of Peru. Rolla M. Tryon, Robert G. Stolze ; contributed by Alan R. Smith.

n.s. no.29(1992)

Pteridophyta of Peru. Rolla M. Tryon, Robert G. Stolze.

n.s. no.20(1989)

Pteridophyta of Peru. Rolla M. Tryon, Robert G. Stolze ; with the collaboration of: R. James Hickey, Benjamin Øllgaard.

n.s. no.34(1994)

Index filicum,sive, Enumeratio omnium generum specierumque filicum et Hydropteridum ab anno 1753 ad finem anni 1905 descriptorium : adjectis synonymis principalibus, area geographica, etc. /Carl Christensen.

Fascicles 1-12, 1753-1906

Index filicum,sive, Enumeratio omnium generum specierumque filicum et Hydropteridum ab anno 1753 ad finem anni 1905 descriptorium : adjectis synonymis principalibus, area geographica, etc. /Carl Christensen.

Suppl. 1906-12

Index filicum,sive, Enumeratio omnium generum specierumque filicum et Hydropteridum ab anno 1753 ad finem anni 1905 descriptorium : adjectis synonymis principalibus, area geographica, etc. /Carl Christensen.

Suppl. prelim. 1913-17

Index filicum,sive, Enumeratio omnium generum specierumque filicum et Hydropteridum ab anno 1753 ad finem anni 1905 descriptorium : adjectis synonymis principalibus, area geographica, etc. /Carl Christensen.

Suppl. 3 1917-33

Index filicum,sive, Enumeratio omnium generum specierumque filicum et Hydropteridum ab anno 1753 ad finem anni 1905 descriptorium : adjectis synonymis principalibus, area geographica, etc. /Carl Christensen.

Suppl. 4 1934-60