Published in Journal of The Washington Academy of Sciences, in 1958, in volume 48, pages 18-21

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Published in Rhodora, in 1964, in volume 66, pages 6-15

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Published in The Auk, in 1912, in volume 29, pages 406-407

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Published in Phytologia, in 1985, in volume 58, issue 2, pages 105-164

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Published in The Auk, in 1909, in volume 26, pages 323-326

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Published in The Auk, in 1910, in volume 27, pages 225-226

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Published in Madroño, in 1970, in volume 20, issue 5, pages 241-245

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Published in The Auk, in 1908, in volume 25, pages 339-340

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Published in The Auk, in 1903, in volume 20, pages 64

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Published in Biol Bull, in 1970, in volume 138, pages 47-55

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Published in The Auk, in 1913, in volume 30, pages 248-261

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Published in Journal of The New York Entomological Society, in 1950, in volume 58, issue 2, pages 87

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Published in Phytologia, in 1988, in volume 65, issue 4, pages 285-289

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Published in Entomological News, in 1907, in volume 18, issue 9, pages 375-378

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Published in Journal of The Arnold Arboretum, in 1982, in volume 63, issue 1, pages 63-81

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Published in Rhodora, in 1940, in volume 42, issue 494, pages 40-47

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Published in Canadian Entomologist, in 1880, in volume 12, pages 158-159

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Published in Rhodora, in 1959, in volume 61, issue 723, pages 79-81

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Published in Madroño, in 1946, in volume 8, issue 6, pages 179-184

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Published in Madroño, in 1957, in volume 14, issue 2, pages 51-53

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Published in Madroño, in 1967, in volume 19, issue 3, pages 74-78

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Published in Madroño, in 1956, in volume 13, issue 8, pages 261-265

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Published in Rhodora, in 1968, in volume 70, issue 783, pages 410-418

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Published in Madroño, in 1963, in volume 17, issue 4, pages 115

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Published in Psyche: A Journal of Entomology, in 1963, in volume 70, issue 1, pages 7-16

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Published in Rhodora, in 1973, in volume 75, issue 804, pages 493-516

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Published in Canadian Entomologist, in 1907, in volume 39, pages 102-103

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Published in Canadian Entomologist, in 1908, in volume 40, pages 239-241

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Published in Rhodora, in 1982, in volume 84, issue 837, pages 143-147

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Published in Psyche: A Journal of Entomology, in 1917, in volume 24, issue 3, pages 87-88

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Published in Journal of The Arnold Arboretum, in 1965, in volume 46, issue 4, pages 465-490

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Published in Journal of The Arnold Arboretum, in 1958, in volume 39, issue 4, pages 494-511

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Published in Madroño, in 1950, in volume 10, issue 5, pages 139-142

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Published in Ibis, in 1871, in volume 1, issue 1, pages 54-68

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Published in Ibis, in 1871, in volume 1, issue 4, pages 384-402

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Published in Ibis, in 1871, in volume 1, issue 2, pages 205-225

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Published in Journal of Economic Entomology, in 1911, in volume 4, pages 130-132

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Published in Madroño, in 1968, in volume 19, issue 6, pages 222

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Published in Canadian Entomologist, in 1900, in volume 32, pages 167-168

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Published in The Canadian Entomologist, in 1911, in volume 43, pages 292-294

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Published in Rhodora, in 2004, in volume 106, issue 926, pages 178-184

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Published in Sida, Contributions To Botany, in 1974, in volume 5, issue 5, pages 334-337

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Published in Nautilis, in 1915, in volume 29, pages 4-11

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Published in Palaeontology, in 1966, in volume 9, issue 3, pages 355-359

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Published in Journal of The Arnold Arboretum, in 1974, in volume 55, issue 3, pages 333-343

Created: 2016-07-07, modified: 2016-07-07

Published in Journal of The Arnold Arboretum, in 1975, in volume 56, issue 3, pages 364-368

Created: 2016-07-07, modified: 2016-07-07

Published in Madroño, in 1940, in volume 5, issue 5, pages 161-162

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Published in Proceedings of The Royal Society of Victoria, in 1973, in volume 86, issue 1, pages 47-75

Created: 2020-07-02, modified: 2020-07-02