Athyrium angustum (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Athyrium angustum" in English language version.

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doi.org

Hazen, H. H. (1947). "Survey of Ferns in a Maine Mountain Area". American Fern Journal. 37 (3): 79–82. doi:10.2307/1545194. JSTOR 1545194.
Benedict, R. C. (1934). "Can Anyone Readily Distinguish the Northern and Southern Lady Fern Species?". American Fern Journal. 24 (4): 117–119. doi:10.2307/1544507. JSTOR 1544507.

jstor.org

Hazen, H. H. (1947). "Survey of Ferns in a Maine Mountain Area". American Fern Journal. 37 (3): 79–82. doi:10.2307/1545194. JSTOR 1545194.
Wright, Kenneth E.; Crandall, Dorothy L. (1941). "Rhode Island Ferns". Torreya. 41 (3): 73–75. ISSN 0096-3844. JSTOR 40597390.
Benedict, R. C. (1934). "Can Anyone Readily Distinguish the Northern and Southern Lady Fern Species?". American Fern Journal. 24 (4): 117–119. doi:10.2307/1544507. JSTOR 1544507.

natureserve.org

explorer.natureserve.org

NatureServe (November 1, 2024). "Athyrium filix-femina ssp. angustum". NatureServe Explorer. Arlington, Virginia. Retrieved November 17, 2024.

natureserve.org

Faber-Langendoen, D; Nichols, J; Master, L; Snow, K; Tomaino, A; Bittman, R; Hammerson, G; Heidel, B; Ramsay, L; Teucher, A; Young, B (2012). NatureServe Conservation Status Assessments: Methodology for Assigning Ranks (PDF) (Report). Arlington, Virginia, United States of America: NatureServe.

worldcat.org

search.worldcat.org

Wright, Kenneth E.; Crandall, Dorothy L. (1941). "Rhode Island Ferns". Torreya. 41 (3): 73–75. ISSN 0096-3844. JSTOR 40597390.