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Rediscovery, Distribution and Phytogeographic Affinities of Leptogramma pilosa in Alabama
Vol 68, Page 1
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Chromosome Numbers in the Fern Genus Anogramma, II
Vol 68, Page 3
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Geographical Distribution of Isoetes butleri in the Southeastern United States
Vol 68, Page 7
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Thelypteris oroniensis, a New Species from Costa Rica
Vol 68, Page 9
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Additions and Corrections to the Pteridophyte Flora of Chihuahua, Mexico
Vol 68, Page 11
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The Distribution and Chemical Constituents of the Farinose Exudates in Gymnogrammoid Ferns
Vol 68, Page 13
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Polystichum lonchitis Found in the Black Hills
Vol 68, Page 29
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On the Distribution of Lycopodium flabelliforme in Illinois
Vol 68, Page 30
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A Monograph of the Fern Genus Bolbitis (Lomariopsidaceae)
Vol 68, Page 31
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The Taxonomic Status of Selanginella eatonii
Vol 68, Page 33
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Microreplicas as a Technique for Rapid Evaluation of Surface Silica Micromorphology in Equisetum
Vol 68, Page 37
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The Establishment of Bracken Following Fire in Tropical Habitats
Vol 68, Page 41
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The Distribution and Ecology of Dryopteris in Southeastern Virginia and Adjacent North Carolina
Vol 68, Page 45
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The Fine Structure of the Newly Formed Spore of Onoclea sensibilis
Vol 68, Page 52
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The Anatomy of Equisetum diffusum Tubers
Vol 68, Page 55
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A New Species of Asplenium from Guatemala
Vol 68, Page 57
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Some Insect Interactions with Azolla mexicana
Vol 68, Page 60
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Notes on North American Lower Vascular Plants
Vol 68, Page 61
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The Ferns of San Salvador Island, II
Vol 68, Page 62
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Cheilanthes microphylla, a Genus and Species New to the Bahama Archipelago
Vol 68, Page 63
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Spread of the Exotic Fern Lygodium microphyllum in Florida
Vol 68, Page 65
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Chlorophyll and Lipid Changes on Germination in the Non-Green Spores of Thelypteris dentata
Vol 68, Page 67
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Gametophytes of Botrychium multifidum as Grown in Axenic Culture
Vol 68, Page 71
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Revision of the Genus Cochlidium (Grammitidaceae)
Vol 68, Page 76
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A Deletion from the Pteridophyte Flora of Nebraska
Vol 68, Page 94
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Cystopteris tennesseensis in Alabama
Vol 68, Page 95
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Lycopodium cernuum in Louisiana
Vol 68, Page 96
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Trichomanes Gametophytes in Massachusetts
Vol 68, Page 97
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A New and Unique, Mat-Forming Merlin's-Grass (Isoetes) from Georgia
Vol 68, Page 99
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Athyrium filix-femina New to Saskatchewan
Vol 68, Page 119
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New Combinations in the Fern Flora of Venezuela
Vol 68, Page 120