The pteridophyta of Fernando Po (contribution to a Flora of the island). II: Marattiaceae, Hymenophyllaceae, Adiantaceae, Hemionitidaceae |
1980 |
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The pteridophyta of Fernando Po (contribution to a Flora of the island). III: Ophioglossaceae, Sinopteridaceae, Vittariaceae, Polypodiaceae, Grammitaceae, Loxogrammaceae, Davalliaceae, Oleandraceae, Nephrolepidaceae |
1979 |
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The pteridophyta of Bioko (Fernando Po) (contributions to a Flora of the island). V: Aspleniaceae, Aspidiaceae, Lomariopsidaceae, Elaphoglossaceae, Addendum. Key to families. Acknowledgements. References. Index |
1991 |
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The pteridophyta of Fernando Po (contribution to a Flora of the island). I: Lycopodiaceae, Selaginellaceae, Psilotaceae, Schizaeaceae, Gleicheniaceae, Osmundaceae, Cyatheaceae |
1979 |
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The pteridophyta of Bioko (Fernando Po) (contributions to a Flora of the island). IV: Isoëtaceae, Pteridaceae, Acrostichaceae, Dennstaedtiaceae, Hypolepidaceae, Athyriaceae, Thelypteridaceae, Blechnaceae |
1988 |
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