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By: Stewart, R. E. - Pacific Northwest Forest and Range Experiment Station (Portland, Or.)Edition:Publication info: Portland Or, Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, [1976]Volume: no.284Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects: Bracken fern Control Diseases and pests Herbicides Oregon, Western Polystichum Testing Trees Washington (State), WesternBHL Collections:
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By: Wagner, David H.,Edition:Publication info: [Washington], American Fern Society, 1979Volume: no.1 (1979)Series:Holding Institution: Smithsonian Libraries and ArchivesSubjects: Birtish Columbia Classification Ferns Polystichum West (U.S.)BHL Collections: Expanding Access to Biodiversity Literature
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By: Lorence, David - Wagner, Warren Lambert - Wood, Kenneth Richard, - Smith, Alan R.,Type: ArticleIn: PhytoKeysVolume: 4Series:Issue:Date: 2011Page Range: 5-51Publication Info: Pensoft Publishers 2011Subjects: Blechnum Cyclosorus Dryopteris French Polynesia Marquesas Islands Polystichum pteridophytes Pteris Thelypteris
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By: Handfield, Louis - Handfield, DanielType: ArticleIn: ZooKeysVolume: 149Series:Issue:Date: 2011Page Range: 5-15Publication Info: Pensoft Publishers 2011Subjects: Christmas fern Crambidae Dryopteridaceae eastern North America Herpetogramma Polystichum taxonomy
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By: McKeown, Meghan - Sundue, Michael, - Barrington, David S. (David Stanley)Type: ArticleIn: PhytoKeysVolume: 14Series:Issue:Date: 2012Page Range: 43-56Publication Info: Pensoft Publishers 2012Subjects: Australia Biogeography Morphology Polystichum Rumohra