Published in Annals of the Missouri Botanical Garden, in 1920, in volume 7, pages 249-289

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Published in Sida, Contributions To Botany, in 2004, in volume 21, issue 2, pages 977-991

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Published in Ibis, in 1867, in volume 3, issue 1, pages 97-104

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Published in Biol Bull, in 1954, in volume 106, pages 297-307

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Published in Biol Bull, in 1949, in volume 96, pages 270-282

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Published in Ibis, in 1919, in volume 1, issue 3, pages 537-539

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Published in Madroño, in 1967, in volume 19, issue 3, pages 91

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Published in Canadian Entomologist, in 1878, in volume 10, pages 74-78

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Published in Canadian Entomologist, in 1874, in volume 6, issue 9, pages 166-170

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Published in Canadian Entomologist, in 1871, in volume 3, issue 12, pages 221-224

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Published in Madroño, in 1964, in volume 17, issue 6, pages 203-204

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Published in Journal of The Botanical Research Institute of Texas, in 2008, in volume 2, issue 1, pages 193-199

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Published in Canadian Entomologist, in 1874, in volume 6, pages 229-249

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Published in The Canadian Entomologist, in 1878, in volume 10, issue 6, pages 109-114

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Published in Rhodora, in 1963, in volume 65, issue 763, pages 271-273

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Published in Torreya, in 1904, in volume 4, issue 4, pages 52-56

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Published in Asa Gray correspondence. Senders Br-Bz, in 1861, pages 1-42

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Published in Asa Gray correspondence. Senders Br-Bz, in 1862, pages 1-4

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Published in Asa Gray correspondence. Senders Br-Bz, in 1862, pages 1-2

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Published in Asa Gray correspondence. Senders Br-Bz, in 1855, pages 1-2

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Published in Asa Gray correspondence. Senders Br-Bz, in 1862, pages 1-2

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Published in Asa Gray correspondence. Senders Br-Bz, in 1862, pages 1-3

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Published in Asa Gray correspondence. Senders Br-Bz, in 1863, pages 1-2

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Published in Asa Gray correspondence. Senders Br-Bz, in 1862, pages 1-6

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Published in Asa Gray correspondence. Senders Br-Bz, in 1864, pages 1-6

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Published in Asa Gray correspondence. Senders Br-Bz, in 1870, pages 1-2

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Published in Asa Gray correspondence. Senders Br-Bz, in 1870, pages 1-2

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Published in Asa Gray correspondence. Senders Br-Bz, in 1863, pages 1-4

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Published in Asa Gray correspondence. Senders Br-Bz, in 1863, pages 1-2

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Published in Asa Gray correspondence. Senders Br-Bz, in 1863, pages 1-4

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Published in Asa Gray correspondence. Senders Br-Bz, in 1864, pages 1-2

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Published in Asa Gray correspondence. Senders Br-Bz, in 1870, pages 1-2

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Published in Asa Gray correspondence. Senders Br-Bz, in 1873, pages 1-2

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Published in Asa Gray correspondence. Senders Br-Bz, in 1874, pages 1-2

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Published in Asa Gray correspondence. Senders Br-Bz, in 1877, pages 1-2

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Published in Asa Gray correspondence. Senders Br-Bz, in 1863, pages 1-4

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Published in Asa Gray correspondence. Senders Br-Bz, in 1863, pages 1-2

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Published in Asa Gray correspondence. Senders Br-Bz, in 1863, pages 1-4

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Published in Asa Gray correspondence. Senders Br-Bz, in 1864, pages 1-2

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Published in Asa Gray correspondence. Senders Br-Bz, pages 1-2

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Published in Asa Gray correspondence. Senders Br-Bz, in 1905, pages 1-4

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Published in Madroño, in 1985, in volume 32, issue 2, pages 120-121

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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1857, pages 1

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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1849, pages 1

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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1849, pages 1-3

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Published in Asa Gray correspondence. Senders La-Le, 1833-1897 (inclusive), in 1880, pages 1-2

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