Published in Phytologia, in 1969, in volume 18, issue 6, pages 339
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Published in Cryptogamie. Algologie, in 1983, in volume 4, issue 3-4, pages 227-232
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Published in Phytologia, in 1971, in volume 22, issue 2, pages 106-108
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Published in Rhodora, in 1937, in volume 39, issue 464, pages 277-280
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Published in Rhodora, in 1937, in volume 39, issue 465, pages 366
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Published in Rhodora, in 1938, in volume 40, issue 474, pages 221-241
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Published in Rhodora, in 1938, in volume 40, issue 475, pages 255-273
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Published in Rhodora, in 1937, in volume 39, issue 466, pages 424
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Published in Rhodora, in 1933, in volume 35, issue 419, pages 359-364
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Published in Rhodora, in 1935, in volume 37, issue 437, pages 189-196
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Published in Madroño, in 1961, in volume 16, issue 3, pages 108
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Published in Contributions in Science, in 1957, in volume 5, pages 1-2
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Published in Rhodora, in 1948, in volume 50, issue 591, pages 67-71
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Published in Biol Bull, in 1935, in volume 68, pages 422-439
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Published in Rhodora, in 1956, in volume 58, issue 689, pages 117-124
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Published in Torreya, in 1902, in volume 2, issue 6, pages 90-91
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Published in Torreya, in 1902, in volume 2, issue 2, pages 20-21
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Published in Torreya, in 1902, in volume 2, issue 11, pages 173-175
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Published in Torreya, in 1903, in volume 3, issue 1, pages 5-6
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Published in Torreya, in 1902, in volume 2, issue 8, pages 113-117
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Published in Torreya, in 1902, in volume 2, issue 12, pages 177-180
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Published in Rhodora, in 1936, in volume 38, pages 191-5
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Published in Rhodora, in 1934, in volume 36, pages 415-7
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Published in Botanical Gazette, in 1916, in volume 61, issue 3, pages 213-230
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Published in Torreya, in 1901, in volume 1, issue 1, pages 5-6
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Published in Torreya, in 1902, in volume 2, issue 3, pages 40-41
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Published in Torreya, in 1902, in volume 2, issue 9, pages 137-139
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Published in Torreya, in 1942, in volume 42, issue 6, pages 191-192
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Published in The Victorian Naturalist, in 1937, in volume 54, issue 3, pages 35
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Published in Annals And Magazine of Natural History, in 1881, in volume 7, pages 250-255
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Published in Torreya, in 1901, in volume 1, issue 5, pages 56-59
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Published in Proceedings of The American Philosophical Society, in 1911, in volume 50, issue 199, pages 316-320
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Published in Torreya, in 1903, in volume 3, issue 5, pages 74-76
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Published in Torreya, in 1904, in volume 4, issue 6, pages 86-91
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Published in Palaeontology, in 1983, in volume 26, issue 2, pages 277-294
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Published in Torreya, in 1905, in volume 5, issue 10, pages 175-179
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Published in Journal of South African Botany, in 1937, in volume 3, pages 155-164
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Published in Proceedings of The American Philosophical Society, in 1911, in volume 50, issue 200, pages 397-403
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Published in Proceedings of The American Philosophical Society, in 1913, in volume 52, issue 209, pages 283-286
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Published in Torreya, in 1905, in volume 5, issue 5, pages 83-85
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Published in Ibis, in 1912, in volume 6, issue 2, pages 314-331
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Published in Madroño, in 1942, in volume 6, issue 8, pages 260-265
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Published in Journal of South African Botany, in 1936, in volume 2, pages 75-90
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Published in Asa Gray correspondence. Senders Be-Bo, in 1844, pages 1-2
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Published in Proceedings of The American Philosophical Society, in 1919, in volume 58, issue 220, pages 236-240
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Published in Gardens' Bulletin Singapore, in 1984, in volume 37, issue 1, pages 105-109
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Published in Palaeontology, in 1986, in volume 29, issue 4, pages 665-684
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Published in The Auk, in 1912, in volume 29, pages 262-263
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Published in Veliger, in 1975, in volume 17, pages 233-242
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Published in Asa Gray correspondence. Senders A, in 1890, pages 1
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