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First Illustrations of Ferns from Peru and Chile
Vol 50, Page 26
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Survival of Hart's-Tongue Fern in Central New York
Vol 50, Page 55
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Multicellular and Branched Hairs on the Fern Gametophyte
Vol 50, Page 78
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Progress in the Study of Dryopteris Hybrids
Vol 50, Iss 1, Page 87
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Two Problem-Species: Schizoloma cordatum Gaud. and Syngramma pinnata J. Smith
Vol 50, Page 109
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Notes on Pteridophytes from Australasia and New Caledonia, I
Vol 50, Iss 1, Page 117
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A Synopsis of Sceptridium in Japan
Vol 50, Iss 1, Page 127
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Observations on Cultivated Ferns VI. The Ferns Currently Known as Rumohra
Vol 50, Page 145
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The Gametophyte and Young Sporophyte of Athyrium esculentum
Vol 50, Page 194
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Vein Patterns in Microsorium scandens and Its Allies
Vol 50, Iss 3, Page 241
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On the Lava Fields of Rangitoto
Vol 50, Page 257
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Azolla caroliniana Willd. in Georgia
Vol 50, Page 266
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A Key to American Dryopteris Species Based on Characters of the Perispore
Vol 50, Page 270
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Cytological Observations on the Himalayan Species of Athyrium and Comments on the Evolutionary Status of the Genus
Vol 50, Page 276
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A New Equisetum
Vol 50, Page 107