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Additions and Corrections to the Genera Filicum
Vol 40, Page 16
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The Habitat of Diellia
Vol 40, Page 21
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The Problem of Generic Segregates in the Form-Genus Lycopodium
Vol 40, Page 32
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A New Erect Species of the Selaginella rupestris Group
Vol 40, Page 69
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A New Interpretation of the Dryopteris Clintoniana Group
Vol 40, Iss 1, Page 118
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Notes on Micronesian Pteridophyta
Vol 40, Iss 1, Page 132
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A New Form of Lorinseria
Vol 40, Iss 2, Page 174
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Notholaena Copelandii, a Newly Recognized Species of the Texano- Mexican Region
Vol 40, Iss 2, Page 178
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Two Varieties of Cystopteris fragilis
Vol 40, Iss 3, Page 201
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Notes on the Ferns of the Eastern United States
Vol 40, Page 213
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Ctenitis vellea, a Neglected West Indian Fern
Vol 40, Iss 3, Page 226
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Notes on the Ferns of the Eastern United States (Concluded)
Vol 40, Iss 4, Page 241