Accepted By:
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Fernald, M. 1950. Manual (ed. 8) i–lxiv, 1–1632. American Book Co., New York.
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Lellinger, D. B. 1985. A Field Manual of the Ferns and Fern Allies of the United States and Canada. 389 pp.
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Li, H., T. Liu, T. Huang, T. Koyama & C. E. DeVol. 1979. Vascular Plants. Volume 6: 665 pp. In Fl. Taiwan. Epoch Publishing Co., Ltd., Taipei.
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Scoggan, H. J. 1978 [1979]. Pteridophyta, Gymnospermae, Monocotyledoneae. 2: 93–545. In Fl. Canada. National Museums of Canada, Ottawa.
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Taylor, T. M. C. 1970. Pacific Northwest Ferns and Their Allies. 247 pp.
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Welsh, S. L. 1974. Anderson's Fl. Alaska Adj. Parts Canada i–xvi, 1–724. Brigham Young University Press, Provo.
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