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Published in Rhodora, in 1936, in volume 38, pages 298-300
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Published in Rhodora, in 1935, in volume 37, issue 438, pages 226-227
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Published in Rhodora, in 1934, in volume 36, issue 425, pages 195-196
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Published in Rhodora, in 1960, in volume 62, issue 741, pages 258-262
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Published in The Wilson Bulletin, in 2000, in volume 112, issue 1, pages 14-20
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Published in Proceedings of The Biological Society of Washington, in 1932, in volume 45, pages 207
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Published in Rhodora, in 1991, in volume 93, pages 67-99
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Published in Rhodora, in 1983, in volume 85, issue 843, pages 371-379
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Published in The Wilson Bulletin, in 1940, in volume 52, issue 1, pages 24-29
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Published in Journal of The Botanical Research Institute of Texas, in 2014, in volume 8, issue 1, pages 203-225
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Published in Torreya, in 1943, in volume 43, issue 1, pages 2-3
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Published in Torreya, in 1914, in volume 14, issue 1, pages 1-2
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Published in Treubia, in 1921, in volume 1, pages 292-300
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Published in Treubia, in 1923, in volume 3, pages 277-380
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Published in Rhodora, in 1905, in volume 7, issue 79, pages 140
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in 1887, pages 1-2
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Published in Gardens' Bulletin, in 1960, in volume 17, issue 3, pages 341-349
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