Published in Revue Suisse De Zoologie, in 1935, in volume 42, issue 9, pages 293-323

Created: 2014-02-20, modified: 2023-02-16

Published in Zoologische Jahrbücher. Abteilung für Systematik, Geographie und Biologie der Tiere, in 1909, in volume 27, pages 439-446

Created: 2016-07-20, modified: 2016-07-20

Published in Botanical Museum Leaflets, Harvard University, in 1953, in volume 16, pages 112-114

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Published in Rhodora, in 1951, in volume 53, issue 627, pages 67-78

Created: 2014-06-16, modified: 2023-02-16

Published in Journal of the Arnold Arboretum, in 1958, in volume 39, pages 217-295

Created: 2011-01-26, modified: 2023-02-16

Published in Botanical Museum Leaflets, Harvard University, in 1977, in volume 25, pages 243-257

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Published in Botanical Museum Leaflets, Harvard University, in 1940, in volume 8, issue 4, pages 200

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Published in Botanical Museum Leaflets, Harvard University, in 1941, in volume 9, pages 84

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Published in Botanical Museum Leaflets, Harvard University, in 1952, in volume 15, pages 185-190

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Published in Botanical Museum Leaflets, Harvard University, in 1955, in volume 17, issue 4, pages 27-36

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Published in Botanical Museum Leaflets, Harvard University, in 1960, in volume 19, pages 123-124

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Published in Botanical Museum Leaflets, Harvard University, in 1958, in volume 18, pages 181-185

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Published in Botanical Museum Leaflets, Harvard University, in 1938, in volume 6, pages 193-195

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Published in Botanical Museum Leaflets, Harvard University, in 1954, in volume 16, pages 241-260

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Published in Rhodora, in 1963, in volume 65, issue 762, pages 97-120

Created: 2014-06-16, modified: 2023-02-16

Published in Sida, Contributions To Botany, in 1983, in volume 10, issue 2, pages 191

Created: 2015-12-02, modified: 2015-12-02

Published in Rhodora, in 1951, in volume 53, issue 636, pages 273-279

Created: 2014-06-16, modified: 2023-02-16

Published in Rhodora, in 1947, in volume 49, issue 578, pages 54-60

Created: 2014-06-16, modified: 2023-02-16

Published in Botanical Museum Leaflets, Harvard University, in 1940, in volume 8, pages 134-140

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Published in Botanical Museum Leaflets, Harvard University, in 1941, in volume 9, pages 165-198

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Published in Mycotaxon, in 2016, in volume 131, issue 1, pages 123-133

Created: 2024-07-29, modified: 2024-07-29

Published in Botanical Museum Leaflets, Harvard University, in 1984, in volume 30, issue 2, pages 91-93

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Published in Botanical Museum Leaflets, Harvard University, in 1957, in volume 17, pages 241-246

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Published in Rhodora, in 1964, in volume 66, issue 766, pages 118-126

Created: 2016-07-19, modified: 2023-02-16

Published in Botanical Museum Leaflets, Harvard University, in 1946, in volume 12, pages 117-132

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Published in Botanical Museum Leaflets, Harvard University, in 1977, in volume 25, pages 151-159

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Published in Botanical Museum Leaflets, Harvard University, in 1947, in volume 13, issue 4, pages 12-15

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Published in Rhodora, in 1976, in volume 78, issue 813, pages 65-72

Created: 2014-06-16, modified: 2023-02-16

Published in Botanical Museum Leaflets, Harvard University, in 1980, in volume 28, issue 1, pages 47-60

Created: 2016-02-07, modified: 2025-12-17

Published in Botanical Museum Leaflets, Harvard University, in 1969, in volume 22, pages 253-264

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Published in Botanical Museum Leaflets, Harvard University, in 1955, in volume 17, issue 4, pages 1-11

Created: 2016-02-07, modified: 2025-12-17

Published in Botanical Museum Leaflets, Harvard University, in 1959, in volume 18, pages 321-327

Created: 2016-02-07, modified: 2025-12-17

Published in Rhodora, in 1990, in volume 92, pages 42-44

Created: 2014-06-16, modified: 2023-02-16

Published in Rhodora, in 1959, in volume 61, issue 721, pages 1-20

Created: 2014-06-16, modified: 2023-02-16

Published in Rhodora, in 1957, in volume 59, issue 706, pages 245-251

Created: 2016-07-19, modified: 2023-02-16

Published in Rhodora, in 1968, in volume 70, issue 783, pages 313-339

Created: 2014-06-16, modified: 2023-02-16

Published in Botanical Museum Leaflets, Harvard University, in 1950, in volume 14, pages 79-86

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Published in Botanical Museum Leaflets, Harvard University, in 1950, in volume 14, pages 97-105

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Published in Botanical Museum Leaflets, Harvard University, in 1953, in volume 16, pages 21-44

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Published in Botanical Museum Leaflets, Harvard University, in 1952, in volume 15, pages 111-138

Created: 2016-02-07, modified: 2025-12-17

Published in Mycotaxon, in 2020, in volume 135, issue 2, pages 299-308

Created: 2024-07-29, modified: 2024-07-29

Published in Rhodora, in 1957, in volume 59, issue 707, pages 280-289

Created: 2016-07-19, modified: 2023-02-16

Published in Madroño, in 1963, in volume 17, issue 1, pages 30

Created: 2016-02-15, modified: 2023-02-16

Published in Botanical Museum Leaflets, Harvard University, in 1955, in volume 17, issue 4, pages 12-24

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Published in Botanical Museum Leaflets, Harvard University, in 1950, in volume 14, pages 87-96

Created: 2016-02-07, modified: 2025-12-17

Published in Botanical Museum Leaflets, Harvard University, in 1953, in volume 16, pages 97-105

Created: 2016-02-07, modified: 2025-12-17

Published in Botanical Museum Leaflets, Harvard University, in 1977, in volume 25, pages 99-104

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Published in Botanical Museum Leaflets, Harvard University, in 1980, in volume 28, issue 3, pages 271-275

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Published in Rhodora, in 1963, in volume 65, issue 761, pages 1-21

Created: 2016-07-19, modified: 2023-02-16

Published in Botanical Museum Leaflets, Harvard University, in 1977, in volume 25, pages 91-98

Created: 2016-02-07, modified: 2025-12-17