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The Life History of Zanardinia
Vol 56, Iss 1, Page 1
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Undescribed Plants from Guatemala and Other Central American Republics. XXXVII
Vol 56, Iss 1, Page 51
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Contributions from the Rocky Mountain Herbarium. XIII
Vol 56, Iss 1, Page 63
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Changed Permeability and Antagonism
Vol 56, Iss 1, Page 85
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The Origin and Development of the Embryo Sac and Embryo of Dendrophthora opuntioides and D. gracile. I
Vol 56, Iss 2, Page 89
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General Biology of Rusts
Vol 56, Iss 2, Page 161
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Mitochondria
Vol 56, Iss 2, Page 167
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Semipermeability of Seed Coats
Vol 56, Iss 3, Page 169
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Seedling Anatomy
Vol 56, Iss 3, Page 246
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Lichens of the Galapagos Islands
Vol 56, Iss 3, Page 248
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Filices Purdomianae
Vol 56, Iss 4, Page 331
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Anatomy of Japanese Conifers
Vol 56, Iss 4, Page 346
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Araucarineae
Vol 56, Iss 4, Page 347
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Botanical Phenomena and the Problem of Recent Coastal Subsidence
Vol 56, Iss 6, Page 449
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Western Plant Studies. II
Vol 56, Iss 6, Page 469
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Studies in the Genus Bidens. I
Vol 56, Iss 6, Page 490
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Some Alaskan Lichens
Vol 56, Iss 6, Page 496
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Phylogeny of Filicales
Vol 56, Iss 6, Page 517
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Morphology of Riccia
Vol 56, Iss 6, Page 518
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The Life History of Thelygonum
Vol 56, Iss 6, Page 519