Phylogenetic relationships and evolution of extant Horsetails, Equisetum, based on chloroplast DNA sequence data (rbcL and trnL-F) von Des Marais, D.L, Smith, A.R, Britton, D.M, Pryer, K.M

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Isoetes X novae-angliae (Isoetaceae), an additional hybrid quillwort from New England von Brunton, D.F, Britton, D.M

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Isoetes melanopoda spp. silvatica (subsp. nov.), a New Quillwort (Isoetaceae) From Eastern North America von Brunton, Daniel F, Britton, Donald M

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Isoetes microvela (Isoetaceae), a new quillwort from the coastal plain of the southeastern United States von Brunton, D.F, Britton, D.M

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Appalachian quillwort (Isoetes appalachiana, sp. nov.; Isoetaceae), a new pteridophyte from the eastern United States von Brunton, D.F, Britton, D.M

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Taxonomy, identity, and status of Isoetes virginica (Isoetaceae) von Brunton, D.F, Britton, D.M, Wieboldt, T.F

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Gametophytes of Diphasiastrum x habereri von Whittier, Dean P., Britton, Donald M.

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Isoetes hyemalis, sp. nov. (Isoetaceae): a new quillwort from the southeastern United States von Brunton, D.F, Britton, D.M, Taylor, W.C

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Engelmann's Quillwort, Isoetes engelmannii, an addition to the aquatic flora of Canada von Britton, D.M, Catling, P.M, Norris, J, Varga, S

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Typification within the Polypodium virginianum complex (Polypodiaceae) von Cranfil, R, Britton, D.M

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Phloroglucinol derivatives of Dryopteris tokyoensis and the missing genome in Dryopteris cristata and Dryopteris carthusiana (Dryopteridaceae) von Widen, C.J, Britton, D.M

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significance of chromosome numbers in ferns von Britton, D.M

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fern Woodsia obtusa (Spreng.) Torrey in Ontario von Britton, D.M

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Role of morphological characteristics of leaves and the sporangial region in the taxonomy of Isoetes in northeastern North America von Kott, L.S, Britton, D.M

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Polystichum lemmonii, a rock shield-fern new to British Columbia and Canada von Cody, W.J, Britton, D.M

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Comparison of chromatographic spot patterns of some North American Isoetes species [Pteridophyta, ferns, chemotaxonomy] von Kott, L. S., Britton, D. M.

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new hybrid woodfern, Dryopteris X algonquinensis D.M. Britton, from Algonquin Park, Ontario von Britton, D.M, Widen, C.J, Brunton, D.F, Keddy, P.A

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Pteridophytes of the regional municipality of Waterloo, Ontario von Campbell, C.A, Britton, D.M

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Measurements of stress fields near a grain boundary: Exploring blocked arrays of dislocations in 3D von Guo, Y., Collins, D.M., Tarleton, E., Hofmann, F., Tischler, J., Liu, W., Xu, R., Wilkinson, A.J., Britton, T.B.

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Indexing electron backscatter diffraction patterns with a refined template matching approach von Foden, A., Collins, D.M., Wilkinson, A.J., Britton, T.B.

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