Published in Palaeontology, in 1968, in volume 11, issue 4, pages 580-600

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Published in Palaeontology, in 1982, in volume 25, issue 3, pages 499-507

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Published in Palaeontology, in 1968, in volume 11, issue 5, pages 697-730

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Published in Palaeontology, in 1972, in volume 15, issue 1, pages 1-28

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Published in Palaeontology, in 1967, in volume 10, issue 4, pages 525-541

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Published in Palaeontology, in 1983, in volume 26, issue 4, pages 687-734

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Published in Torreya, in 1909, in volume 9, issue 4, pages 74-77

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Published in Bull. Zool. Nom., in 1967, in volume 24, pages 304-307

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Published in Madroño, in 1944, in volume 7, issue 8, pages 258

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Published in Botanical Museum Leaflets, Harvard University, in 1964, in volume 20, pages 334-335

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Published in Palaeontology, in 1985, in volume 28, issue 3, pages 527-543

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Published in Rhodora, in 1919, in volume 21, issue 243, pages 69-70

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Published in Rhodora, in 1943, in volume 45, issue 532, pages 167

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Published in Madroño, in 1996, in volume 43, issue 3, pages 432-440

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Published in Phytologia, in 1983, in volume 52, issue 6, pages 373-375

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Published in Madroño, in 1957, in volume 14, issue 2, pages 41-51

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Published in Rhodora, in 1919, in volume 21, issue 247, pages 117-120

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Published in Botanical Museum Leaflets, Harvard University, in 1949, in volume 13, pages 213-247

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Published in Torreya, in 1914, in volume 14, issue 2, pages 21-24

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Published in Madroño, in 1988, in volume 35, issue 2, pages 159-161

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Published in Torreya, in 1915, in volume 15, issue 1, pages 9-11

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Published in Torreya, in 1918, in volume 18, issue 5, pages 91-94

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Published in Botanical Museum Leaflets, Harvard University, in 1967, in volume 22, pages 33-63

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Published in American Fern Journal, in 1915, in volume 5, pages 65-78

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Published in Rhodora, in 1932, in volume 34, issue 405, pages 174-177

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Published in Madroño, in 1948, in volume 9, issue 5, pages 149-155

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Published in Madroño, in 1970, in volume 20, issue 8, pages 398-408

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Published in Ibis, in 1860, in volume 2, issue 4, pages 428-432

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Published in Biol Bull, in 1969, in volume 136, pages 216-225

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Published in Nuytsia, in 2016, in volume 27, pages 33-73

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Published in Rhodora, in 1929, in volume 31, issue 370, pages 193-194

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Published in Madroño, in 1996, in volume 43, issue 3, pages 345-354

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Published in Journal of The Arnold Arboretum, in 1920, in volume 2, issue 2, pages 111-112

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Published in American Fern Journal, in 1917, in volume 7, pages 90-96

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Published in Asa Gray correspondence. Senders Co-Cu, 1826-1891 (inclusive), pages 1-2

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Published in Nuytsia, in 1992, in volume 8, issue 2, pages 195-199

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Published in Iberus, in 1990, in volume 9, pages 63-68

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Published in Rhodora, in 1929, in volume 31, issue 366, pages 106-118

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Published in Rhodora, in 1936, in volume 38, issue 451, pages 263-271

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Published in Rhodora, in 1927, in volume 29, issue 348, pages 247-253

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Published in Journal of The New York Entomological Society, in 1936, in volume 44, issue 1, pages 43-49

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Published in The Wilson Bulletin, in 2003, in volume 115, issue 4, pages 367-373

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Published in Nautilis, in 1918, in volume 32, pages 55-58

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Published in Botanical Gazette, in 1877, in volume 2, issue 9, pages 120-122

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Published in Rhodora, in 1953, in volume 55, issue 658, pages 323-324

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Published in Ent. News, in 1933, in volume 44, pages 227-229

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Published in Zoologica, in 1964, in volume 49, issue 7, pages 115-120

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Published in Zoopathologica, in 1926, in volume 1, issue 7, pages 285-290

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Published in Annals of the Missouri Botanical Garden, in 1944, in volume 31, pages 1-172

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Published in Bulletin du Muséum national d'histoire naturelle, in 1933, in volume 5, issue 4, pages 285-289

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