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Elaphoglossum; ferns; nomenclature; pteridology; systematics; taxonomy
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Systematic Studies Of Elaphoglossum Section Polytrichia (Dryopteridaceae), Fernando Bittencourt De Matos
Systematic Studies Of Elaphoglossum Section Polytrichia (Dryopteridaceae), Fernando Bittencourt De Matos
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Elaphoglossum is the largest genus of the largest family of ferns, the Dryopteridaceae. It has over 600 species distributed in the temperate and tropical regions of the world, but it is especially diverse in the Neotropics, where ca. 80% of the species occur. Morphologically, the genus is usually characterized by simple entire leaves, free veins, acrostichoid sori, and phyllopodia. One of the major clades within Elaphoglossum is the "subulate-scaled clade," which includes all species with subulate scales on the leaves. These scales are often patent and enrolled lengthwise, imparting a bristly or shaggy appearance to the plants. Previous studies have …