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Published in Rodriguésia, in 1952, in volume 15, issue 27, pages 137-162

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Published in Torreya, in 1932, in volume 32, issue 3, pages 65-71

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Published in The Great Basin Naturalist, in 1964, in volume 24, pages 103-106

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Published in Botanical Gazette, in 1913, in volume 56, issue 6, pages 490-495

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Published in Botanical Gazette, in 1917, in volume 64, issue 1, pages 21-41

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Published in Botanical Gazette, in 1920, in volume 70, issue 2, pages 89-109

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Published in Memoirs of the Carnegie Museum, in 1905, in volume 2, issue 5, pages 203-224

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Published in The Wilson Bulletin, in 1934, in volume 46, issue 3, pages 137-142

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Published in Proceedings of The Biological Society of Washington, in 2001, in volume 114, pages 589-598

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Published in Rhodora, in 1961, in volume 63, issue 749, pages 145

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Published in Rhodora, in 1912, in volume 14, issue 167, pages 227

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Published in Rhodora, in 1963, in volume 65, issue 764, pages 318

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Published in Madroño, in 2012, in volume 59, pages 1

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Published in Zeitschrift für Säugetierkunde, in 1974, in volume 40, pages 113-127

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Published in Western Australian Naturalist, in 1975, in volume 13, issue 2/3, pages 34-37

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Published in Biol Bull, in 1956, in volume 111, pages 129-152

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