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Published in Psyche: A Journal of Entomology, in 1915, in volume 22, issue 1, pages 24-27
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Published in The Wilson Bulletin, in 1964, in volume 76, issue 3, pages 290
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Published in The Wilson Bulletin, in 1971, in volume 83, issue 1, pages 49-56
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Published in Madroño, in 1978, in volume 25, issue 1, pages 59
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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1882, in volume 34, pages 226-230
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Published in Annals of the Missouri Botanical Garden, in 1965, in volume 52, pages 444-451
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Published in Pacific Science, in 1968, in volume 22, issue 3, pages 314-321
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Published in Psyche, in 1965, in volume 72, issue 3, pages 225-228
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Published in Journal of The Arnold Arboretum, in 1936, in volume 17, issue 1, pages 38-41
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Published in Rhodora, in 1957, in volume 59, issue 703, pages 181
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Published in Rhodora, in 1961, in volume 63, issue 746, pages 55-57
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Published in Rhodora, in 1972, in volume 74, issue 799, pages 347-349
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Published in The Wilson Bulletin, in 1968, in volume 80, issue 1, pages 94-99
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Published in American Fern Journal, in 1964, in volume 54, pages 89-91
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Published in Sida, Contributions To Botany, in 2006, in volume 22, issue 1, pages 21-23
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Published in Madroño, in 1984, in volume 31, issue 4, pages 203-207
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Published in Madroño, in 1994, in volume 41, issue 3, pages 228-233
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Published in American Fern Journal, in 1993, in volume 83, pages 67-70
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Published in Occasional Papers Museum of Texas Tech University, in 2003, in volume 229, pages 1-23
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Published in Biol Bull, in 1981, in volume 160, pages 250-264
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Published in Rhodora, in 1962, in volume 64, issue 759, pages 200-206
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