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Published in Proceedings of The Biological Society of Washington, in 1976, in volume 89, pages 481-490
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Published in Madroño, in 1975, in volume 23, issue 4, pages 205-209
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Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 664-723
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Published in Madroño, in 1986, in volume 33, issue 4, pages 299
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in 1879, pages 1-2
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Published in Gardens' Bulletin Singapore, in 1967, in volume 22, issue 2, pages 229-230
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Published in Madroño, in 1983, in volume 30, issue 4, pages 226-229
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Published in Muelleria, in 1996, in volume 9, pages 35-36
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Published in Journal of The Botanical Research Institute of Texas, in 2012, in volume 6, issue 2, pages 711-724
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Published in Psyche: A Journal of Entomology, in 1902, in volume 9, issue 320, pages 427-428
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