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A Synthetic "Trigeneric" Hybrid, X Asplenosorus pinnatifidus X Phyllitis scolopendrium var. americana
Vol 79, Page 1, Date 1989
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Electrophoretic Evidence for Interspecific Hybridization in Polystichum
Vol 79, Page 7, Date 1989
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New Species of Ceradenia subg. Ceradenia
Vol 79, Page 14, Date 1989
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A New Combination in South American Polystichum
Vol 79, Page 26, Date 1989
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Five Pteridophytes New to Iowa
Vol 79, Page 28, Date 1989
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The Flavonoids of Polystichum acrostichoides, by Alice Fay and Robert Ballard [book review]
Vol 79, Page 29, Date 1989
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Primary Divergence and Species Concepts in Ferns
Vol 79, Page 36, Date 1989
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Cryptic Species, Species Delimitation, and Taxonomic Practice in the Homosporous Ferns
Vol 79, Page 46, Date 1989
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Hybridization, Reticulation, and Species Concepts in the Ferns
Vol 79, Page 55, Date 1989
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Species Concepts in Pteridophytes: The Treatment and Definition of Agamosporous Species
Vol 79, Page 65, Date 1989
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The Species Concept in Pteridophyta with Special Reference to Isoetes
Vol 79, Page 78, Date 1989
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Species Concepts in Pteridophytes: Summary and Synthesis
Vol 79, Page 90, Date 1989
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Cryptogramma cascadensis, a New Parsley-Fern from Western North America
Vol 79, Page 95, Date 1989
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Zygophlebia, a New Genus of Grammitidaceae
Vol 79, Page 103, Date 1989
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Lycopodium hickeyi: A New Species of North American Clubmoss
Vol 79, Page 119, Date 1989
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A New Species of Thelypteris subg. Goniopteris from the State of Veracruz, Mexico
Vol 79, Page 122, Date 1989
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Cystopteris tennesseensis Confirmed Extant in Maryland
Vol 79, Page 125, Date 1989
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The Cheilanthes dichotoma Group of South America
Vol 79, Page 127, Date 1989
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Ferns of the Coastal Plain: Their Lore, Legends, and Uses
Vol 79, Page 135, Date 1989
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The Effects of Temperature and Selected Growth Regulating Substances on Sporulation in the Aquatic Fern Azolla
Vol 79, Page 136, Date 1989
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Recovery of Botrychium Gametophytes, Gemmae, and Immature Sporophytes by Centrifugation
Vol 79, Page 143, Date 1989
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Peldri II: A Quick and Easy Alternative to Critical Point Drying for Scanning Electron Microscopy
Vol 79, Page 146, Date 1989
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New Taxa and Combinations of Venezuelan Lycopodiaceae
Vol 79, Page 151, Date 1989
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A New Station for Dicranopteris flexuosa in Florida
Vol 79, Page 155, Date 1989