Published in Biol Bull, in 1991, in volume 180, pages 34-55

Created: 2010-01-07, modified: 2011-06-21

Published in Journal of South African botany, in 1966, in volume 32, pages 235

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Published in Journal of South African botany, in 1961, in volume 27, pages 111-123

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Published in Glasgow Naturalist, in 2011, in volume 25, issue 3, pages 61-65

Created: 2017-06-29, modified: 2017-06-29

Published in Palaeontology, in 1988, in volume 31, issue 4, pages 1013-1028

Created: 2016-04-23, modified: 2016-04-23

Published in Journal of South African botany, in 1966, in volume 32, pages 205-207

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Published in Entomologist's Record and Journal of Variation, in 2003, in volume 115, issue 1, pages 37-38

Created: 2016-09-01, modified: 2016-09-01

Published in Transactions of the Royal Society of South Africa, in 1910, in volume 2, issue 1, pages 173-182

Created: 2016-04-30, modified: 2016-04-30

Published in Journal of South African botany, in 1963, in volume 29, pages 139-142

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