Published in Biol Bull, in 1930, in volume 59, pages 48-62

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Published in Biol Bull, in 1930, in volume 59, pages 63-70

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Published in Psyche, in 1889, in volume 5, pages 273-274

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Published in Gardens' Bulletin, Singapore, in 1997, in volume 49, issue 1, pages 7-13

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Published in Rhodora, in 1983, in volume 85, issue 841, pages 45-54

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Published in Botanical Gazette, in 1908, in volume 45, issue 3, pages 213

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Published in Botanical Gazette, in 1912, in volume 53, issue 1, pages 88

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Published in Botanical Gazette, in 1916, in volume 61, issue 3, pages 263-264

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Published in Botanical Gazette, in 1919, in volume 68, issue 4, pages 311

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Published in Botanical Gazette, in 1920, in volume 69, issue 4, pages 351-354

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Published in Journal of South African Botany, in 1973, in volume 39, issue 3, pages 255-260

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Published in Rhodora, in 1982, in volume 84, issue 839, pages 447-450

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Published in Rhodora, in 1983, in volume 85, issue 844, pages 397-403

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Published in Jour Washington Acad Sci, in 1933, in volume 23, pages 36-46

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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1891, pages 1

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Published in Botanical Gazette, in 1896, in volume 21, issue 6, pages 372-373

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Published in Botanical Gazette, in 1912, in volume 54, issue 2, pages 174-175

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Published in American Fern Journal, in 1970, in volume 60, pages 30-32

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Published in Entomological News Philadelphia, in 1911, in volume 22, pages 346

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Published in Botanical Gazette, in 1895, in volume 20, issue 11, pages 496-497

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Published in Botanical Gazette, in 1906, in volume 41, issue 3, pages 216-217

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Published in Botanical Gazette, in 1914, in volume 57, issue 6, pages 543-544

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Published in Torreya, in 1933, in volume 33, issue 1, pages 4-5

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Published in Botanical Gazette, in 1907, in volume 43, issue 2, pages 148

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Published in Botanical Gazette, in 1911, in volume 52, issue 6, pages 493

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Published in Botanical Gazette, in 1922, in volume 73, issue 4, pages 332-333

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Published in Moscosoa, in 1993, in volume 7, issue 0, pages 199-200

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Published in Journal of The Arnold Arboretum, in 1981, in volume 62, issue 2, pages 129-209

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Published in American Fern Journal, in 1982, in volume 72, pages 62

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Published in Journal of South African Botany, in 1935, in volume 1, pages 65-70

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Published in Phytologia, in 1998, in volume 85, issue 4, pages 261-267

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Published in Phytologia, in 1997, in volume 82, issue 1, pages 9-11

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Published in Botanical Gazette, in 1899, in volume 28, issue 1, pages 69-70

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Published in Botanical Gazette, in 1900, in volume 29, issue 1, pages 1-63

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Published in Botanical Gazette, in 1921, in volume 72, issue 5, pages 313-320

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Published in Botanical Gazette, in 1921, in volume 72, issue 6, pages 404-406

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Published in Sida, Contributions To Botany, in 1983, in volume 10, issue 1, pages 33-36

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Published in Journal of The Arnold Arboretum, in 1986, in volume 67, issue 4, pages 441-469

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Published in Journal of The Arnold Arboretum, in 1979, in volume 60, issue 4, pages 477-503

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Published in Journal of The Arnold Arboretum, in 1982, in volume 63, issue 2, pages 103-144

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Published in Cryptogamie. Mycologie, in 1991, in volume 12, issue 1, pages 71-79

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Published in Sida, Contributions To Botany, in 1986, in volume 11, issue 3, pages 329-333

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Published in Sida, Contributions To Botany, in 1984, in volume 10, issue 3, pages 203-206

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Published in Sida, Contributions To Botany, in 1990, in volume 14, issue 2, pages 263-266

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Published in Novitates Zoologicae,, in 1904, in volume 11, issue 1, pages 310-322

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Published in Rhodora, in 1954, in volume 56, issue 661, pages 23-24

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Published in Botanical Gazette, in 1919, in volume 68, issue 1, pages 22-53

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Published in Moscosoa, in 1986, in volume 4, pages 222-225

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Published in Journal of Raptor Research, in 1997, in volume 31, issue 4, pages 384-385

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