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2by Stanwyn G. Shetler & Karl J. StoneSubjects: “...Polypodiopsida...”
Published 1959
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3by K. L. ReadingSubjects: “...Polypodiopsida...”
Published 1980
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4by Louis H. JordalSubjects: “...Polypodiopsida...”
Published 1948
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5by C. O. ErlansonSubjects: “...Polypodiopsida...”
Published 1927
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6by C. O. ErlansonSubjects: “...Polypodiopsida...”
Published 1927
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7by C. O. ErlansonSubjects: “...Polypodiopsida...”
Published 1928
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8by George H. ConklinSubjects: “...Polypodiopsida...”
Published 1932
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9by Darwin R. Spearing, Norman P. Lasca, Michael F. BaadSubjects: “...Polypodiopsida...”
Published 1963
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10by C. O. ErlansonSubjects: “...Polypodiopsida...”
Published 1928
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11by Walter N. KoelzSubjects: “...Polypodiopsida...”
Published 1925
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12by C. O. ErlansonSubjects: “...Polypodiopsida...”
Published 1927
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13by C. O. ErlansonSubjects: “...Polypodiopsida...”
Published 1927
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14by C. O. ErlansonSubjects: “...Polypodiopsida...”
Published 1927
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15by C. O. ErlansonSubjects: “...Polypodiopsida...”
Published 1927
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16by Hansford T. ShackletteSubjects: “...Polypodiopsida...”
Published 1948
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17by Bent Fredskild, Sune Holt, & Beate NielsenSubjects: “...Polypodiopsida...”
Published 1985
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18by A. E. Porsild & M. P. PorsildSubjects: “...Polypodiopsida...”
Published 1925
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19by James H. SoperSubjects: “...Polypodiopsida...”
Published 1958
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20by Hansford T. ShackletteSubjects: “...Polypodiopsida...”
Published 1958
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