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Published in Nautilus, in 1913, in volume 26, pages 109-110
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Published in Nautilis, in 1941, in volume 54, pages 130-136
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Published in Nautilis, in 1897, in volume 11, pages 55-56
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Published in Nautilis, in 1925, in volume 38, pages 86-89
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Published in Nautilis, in 1926, in volume 40, pages 63-65
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Published in Nautilis, in 1928, in volume 41, pages 122-123
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Published in Nautilis, in 1928, in volume 42, pages 43-48
Created: 2013-09-28, modified: 2013-09-28
Published in Nautilis, in 1934, in volume 48, pages 6-14
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Published in Nautilis, in 1941, in volume 55, pages 24-30
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Published in Nautilis, in 1943, in volume 56, pages 81-91
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Published in Nautilis, in 1898, in volume 12, pages 32-33
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Published in Nautilis, in 1900, in volume 13, pages 138-139
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Published in Nautilis, in 1899, in volume 13, pages 89-90
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Published in Nautilis, in 1899, in volume 13, pages 50-51
Created: 2013-09-28, modified: 2013-09-28
Published in Nautilis, in 1899, in volume 13, pages 22-23
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Published in Nautilis, in 1899, in volume 13, pages 6-8
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Published in The Wilson Bulletin, in 1954, in volume 66, issue 4, pages 274
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Published in Journal of South African Botany, in 1984, in volume 50, issue 3, pages 401-405
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Published in Gardens' Bulletin, Singapore, in 1971, in volume 25, issue 3, pages 383-384
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Published in Biol Bull, in 1961, in volume 120, pages 411-419
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Published in Breviora, in 1954, in volume 38, pages 1-5
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Published in Breviora, in 1952, in volume 4, pages 1-9
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Published in Nautilis, in 1934, in volume 47, pages 94-95
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Published in Nautilis, in 1935, in volume 48, pages 135-140
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Published in Nautilis, in 1934, in volume 48, pages 60-67
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Published in Nautilis, in 1935, in volume 49, pages 52-58
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Published in Nautilis, in 1935, in volume 49, pages 21-27
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Published in Nautilis, in 1898, in volume 11, pages 123-134
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Published in Nautilis, in 1925, in volume 39, pages 40-44
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Published in American Fern Journal, in 1928, in volume 18, pages 115-119
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Published in Zoologica, in 1944, in volume 29, issue 12, pages 129
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Published in The Nautilus, in 1945, in volume 58, pages 84-92
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Published in The Nautilus, in 1938, in volume 51, pages 85-88
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Published in Ibis, in 1889, in volume 1, issue 2, pages 227-229
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Published in Torreya, in 1912, in volume 12, issue 1, pages 16-22
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Published in Asa Gray correspondence. Senders B-Ba, pages 1
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Published in Rhodora, in 1917, in volume 19, issue 222, pages 105-110
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Published in Rhodora, in 1922, in volume 24, issue 282, pages 111-121
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Published in Nautilis, in 1928, in volume 41, pages 124-129
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Published in Nautilis, in 1927, in volume 41, pages 22-23
Created: 2013-09-28, modified: 2013-09-28
Published in Nautilis, in 1929, in volume 42, pages 137-139
Created: 2013-09-28, modified: 2013-09-28
Published in Nautilis, in 1929, in volume 42, pages 86-93
Created: 2013-09-28, modified: 2013-09-28
Published in Nautilis, in 1931, in volume 44, pages 131-137
Created: 2013-09-28, modified: 2013-09-28
Published in Nautilis, in 1939, in volume 53, pages 49-53
Created: 2013-09-28, modified: 2013-09-28
Published in Nautilis, in 1941, in volume 54, pages 80-84
Created: 2013-09-28, modified: 2013-09-28