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Published in Rhodora, in 1937, in volume 39, issue 468, pages 496
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Published in Hedwigia, in 1893, in volume 32, pages 32-41
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Published in Zeitschrift Für Systematische Hymenopterologie Und Dipterologie, in 1901, in volume 1, pages 113-126
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Published in The Wilson Bulletin, in 1991, in volume 103, issue 1, pages 1-12
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Published in Rhodora, in 1937, in volume 39, issue 458, pages 51-52
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Published in The Wilson Bulletin, in 1987, in volume 99, issue 4, pages 628-641
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Published in Bulletin du Muséum national d'histoire naturelle, in 1927, in volume 33, issue 2, pages 139-145
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Published in Pacific Science, in 1956, in volume 10, issue 1, pages 103-109
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Published in Discovery reports, in 1936, in volume 12, pages 59-193
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Published in Nautilis, in 1923, in volume 36, pages 103-104
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Published in Scopus, in 1977, in volume 1, pages 84-86
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1858, pages 1-3
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1859, pages 1-3
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), pages 1
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), pages 1
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1860, pages 1-3
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1854, pages 1-5
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