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Published in Journal of the Arnold Arboretum, in 1945, in volume 26, pages 48-60
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Published in Botanical Museum Leaflets, Harvard University, in 1949, in volume 13, pages 213-247
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Published in Entomological News, in 1938, in volume 49, pages 65-69
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Published in Veliger, in 1977, in volume 19, pages 331-340
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Published in Journal of The Arnold Arboretum, in 1941, in volume 22, issue 1, pages 60-80
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Published in Journal of The Arnold Arboretum, in 1941, in volume 22, issue 3, pages 343-374
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Published in Journal of The Arnold Arboretum, in 1942, in volume 23, issue 4, pages 417-443
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Published in Journal of The Arnold Arboretum, in 1946, in volume 27, issue 2, pages 175-185
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Published in Journal of The Arnold Arboretum, in 1949, in volume 30, issue 1, pages 1-9
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Published in Journal of The Arnold Arboretum, in 1941, in volume 22, issue 2, pages 231-252
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Published in Journal of The Arnold Arboretum, in 1941, in volume 22, issue 4, pages 497-528
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Published in Rhodora, in 1899, in volume 1, issue 6, pages 97-98
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Published in Journal of the Arnold Arboretum, in 1943, in volume 24, pages 1-33
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Published in Biol Bull, in 1935, in volume 68, pages 131-139
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Published in Novon, in 1992, in volume 2, pages 426-432
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Published in Annals And Magazine of Natural History, in 1887, in volume 19, pages 465-466
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Published in Rhodora, in 1954, in volume 56, issue 671, pages 242-252
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Published in Rhodora, in 1952, in volume 54, issue 645, pages 220-228
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Published in Pacific Science, in 1964, in volume 18, issue 1, pages 34-40
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Published in Phytologia, in 1996, in volume 81, issue 1, pages 44-45
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Published in Journal of The Arnold Arboretum, in 1942, in volume 23, issue 3, pages 366-368
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