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in 1888, pages 1-2
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Published in Rhodora, in 1940, in volume 42, issue 495, pages 57-83
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Published in Rhodora, in 1940, in volume 42, issue 498, pages 203-213
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Published in Sida, Contributions To Botany, in 2001, in volume 19, issue 4, pages 898
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Published in Journal für Ornithologie, in 1920, in volume 68, pages 70-77
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Published in Journal für Ornithologie, in 1910, in volume 58, pages 731-808
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Published in Journal für Ornithologie, in 1916, in volume 64, pages 1-120
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Published in Rhodora, in 1940, in volume 42, issue 496, pages 105-143
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Published in Gardens' Bulletin Singapore, in 1989, in volume 42, issue 1, pages 47-64
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Published in Botanical Gazette, in 1915, in volume 60, issue 3, pages 215-227
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Published in Verh. zool.-bot. Ges. Wien, in 1887, in volume 37, pages 421-490
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Published in Journal für Ornithologie, in 1922, in volume 70, issue 4, pages 419-423
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Published in Biol Bull, in 1928, in volume 54, pages 279-288
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Published in The Wilson Bulletin, in 1936, in volume 48, issue 1, pages 41-47
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Published in Pan-Pacific Entomologist, in 1942, in volume 18, pages 133-135
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Published in Journal für Ornithologie, in 1918, in volume 66, pages 409-420
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