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Rate of Gametophyte Maturation in Sexual and Apogamous Forms of Pellaea glabella
Vol 58, Page 12, Date 1968
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The Gametophyte and Juvenile Leaves of Loxogramme
Vol 58, Page 19, Date 1968
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Polystichum acrostichoides X lonchitis versus P. X marginale
Vol 58, Page 30, Date 1968
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A New Bolivian Collection of the Rare Elaphoglossum cardenasii
Vol 58, Page 31, Date 1968
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Trichomanes petersii in the Boston Mountains of Arkansas
Vol 58, Page 32, Date 1968
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The Southern Fern Guide
Vol 58, Page 34, Date 1968
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Ferns and Fertilizer
Vol 58, Page 49, Date 1968
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The Valid Varieties of Pellaea andromedaefolia
Vol 58, Page 54, Date 1968
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Petiolar Shoots in the Dennstaedtioid and Related Ferns
Vol 58, Page 64, Date 1968
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Marsilea maheshwarii, a New Species from Pondichery, India
Vol 58, Page 70, Date 1968
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Phloem Studies in the Pteridophytes, Part I. Equisetum
Vol 58, Page 74, Date 1968
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A New Genus of Salviniaceae and a New Species of Azolla from the Late Cretaceous
Vol 58, Page 77, Date 1968
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Notes on Woodwardia areolata and Other Rare Illinois Ferns
Vol 58, Page 89, Date 1968
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A Spiny Dennstaedtia from Central America
Vol 58, Page 90, Date 1968
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Polystichum munitum in South Dakota
Vol 58, Page 92, Date 1968
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Lygodium microphyllum, Another Fern Escaped in Florida
Vol 58, Page 93, Date 1968
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A Presumable Asplenium Hybrid from Kentucky
Vol 58, Page 103, Date 1968
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The Correct Name of a Common Tropical American Oleandra
Vol 58, Page 105, Date 1968
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Vegetative Reproduction in the Ferns I. Leaf Buds of Grammitis tenella
Vol 58, Page 108, Date 1968
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Taxonomic Revision of the Polypodiaceous Genera of India: III. Pleopeltis
Vol 58, Page 119, Date 1968
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Trends of Specialization in the Stipe Anatomy of Dennstaedtia and Related Genera
Vol 58, Page 126, Date 1968
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A Dictionary of the Flowering Plants and Ferns
Vol 58, Page 142, Date 1968
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Polypodium vulgare on Long Island
Vol 58, Page 153, Date 1968
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Notes on Ryukyu Ferns
Vol 58, Page 155, Date 1968
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The Polypodium pectinatum-plumula Complex in Florida
Vol 58, Page 169, Date 1968
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Exclusion of the New York Fern and the Hay-Scented Fern from the Flora of Iowa
Vol 58, Page 176, Date 1968
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Asplenium trichomanes New to Newfoundland
Vol 58, Page 179, Date 1968
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The Correct Name for the Button Fern
Vol 58, Page 180, Date 1968
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The Proper Authorities and Citations for Dryopteris arguta and D. spinulosa
Vol 58, Page 182, Date 1968