Published in Journal of The Washington Academy of Sciences, in 1943, in volume 33, issue 6, pages 170-182

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Published in Phytologia, in 1998, in volume 84, pages 304-306

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Published in Phytologia, in 1986, in volume 59, issue 2, pages 93-94

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Published in Adansonia, in 1979, in volume 18, issue 4, pages 443-457

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Published in Adansonia, in 1972, in volume 12, issue 4, pages 625-629

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Published in Palaeontology, in 1976, in volume 19, issue 3, pages 417-436

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Published in Adansonia, in 1979, in volume 19, issue 1, pages 117-124

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Published in Biol Bull, in 1919, in volume 37, pages 157-167

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Published in Adansonia, in 1978, in volume 17, issue 3, pages 305-326

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Published in Adansonia, in 1978, in volume 18, issue 2, pages 267-277

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Published in The Great Basin Naturalist, in 1958, in volume 18, pages 69-84

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Published in Journal of South African Botany, in 1955, in volume 21, pages 101-108

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Published in Journal of South African botany, in 1970, in volume 36, issue 1, pages 1-8

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Published in Journal of South African Botany, in 1979, in volume 45, issue 3, pages 295-375

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Published in Journal of South African Botany, in 1973, in volume 39, issue 2, pages 111

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Published in Journal of South African Botany, in 1974, in volume 40, issue 3, pages 201-254

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Published in Journal of South African Botany, in 1984, in volume 50, issue 4, pages 463-502

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Published in Annals of the Missouri Botanical Garden, in 1992, in volume 79, pages 969-970

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Published in Journal of South African Botany, in 1976, in volume 42, issue 4, pages 301-359

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Published in Biol Bull, in 1963, in volume 125, pages 416-430

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Published in Austrobaileya, in 2000, in volume 5, pages 671-677

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Published in Palaeontology, in 1969, in volume 12, issue 1, pages 161-171

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Published in Journal of South African Botany, in 1974, in volume 40, issue 4, pages 301-309

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Published in Sida, Contributions To Botany, in 2001, in volume 19, issue 3, pages 711-714

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Published in Biol Bull, in 1988, in volume 174, pages 276-286

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Published in Biol Bull, in 1954, in volume 107, pages 174-191

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Published in Journal of The New York Entomological Society, in 1931, in volume 39, issue 1, pages 1-43

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Published in Journal of South African Botany, in 1982, in volume 48, issue 1, pages 105-163

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Published in Journal of South African Botany, in 1976, in volume 42, issue 1

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Published in Kirtlandia, in 1997, in volume 50, pages 21-24

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Published in Journal of South African botany, in 1951, in volume 17, pages 77-82

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Published in Journal of The New York Entomological Society, in 1995, in volume 103, issue 4, pages 386-400

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Published in Journal of South African botany, in 1970, in volume 36, issue 3, pages 215-228

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Published in Journal of South African botany, in 1970, in volume 36, issue 4, pages 271-286

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Published in Biol Bull, in 1968, in volume 135, pages 92-95

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Published in Kirtlandia, in 1997, in volume 50, pages 17-20

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Published in Kirtlandia, in 2001, in volume 52, pages 63-66

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Published in Journal of South African botany, in 1983, in volume 49, issue 4, pages 347-422

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Published in Biol Bull, in 1954, in volume 106, pages 371-377

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Published in The Wilson Bulletin, in 1952, in volume 64, issue 4, pages 246-247

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Published in Kirtlandia, in 1999, in volume 51, pages 99-104

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Published in Journal of South African botany, in 1971, in volume 37, issue 1, pages 57-70

Created: 2024-07-21, modified: 2024-07-21

Published in Journal of South African Botany, in 1982, in volume 48, issue 1, pages 23-37

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Published in Biol Bull, in 1957, in volume 112, pages 267-275

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Published in Arnaldoa, in 2012, in volume 19, issue 1, pages 29-35

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Published in Journal of Arachnology, in 2009, in volume 37, issue 1, pages 78-83

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Published in Journal of Hymenoptera Research, in 2010, in volume 19, pages 66-76

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Published in Journal of Hymenoptera Research, in 2008, in volume 17, pages 195-200

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