Published in Madroño, in 1957, in volume 14, issue 2, pages 74-79
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Published in Madroño, in 1972, in volume 21, issue 6, pages 403-404
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Published in Contributions in Science, in 1957, in volume 18, pages 1-8
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Published in Contributions From The University of Michigan Herbarium, in 1975, in volume 11, issue 2, pages 89-93
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Published in Contributions From The University of Michigan Herbarium, in 1992, in volume 18, pages 3-38
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Published in Fieldiana: Botany, New Series, in 1979, in volume 1, pages 1-8
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Published in Annals of the Missouri Botanical Garden, in 1974, in volume 61, pages 904-906
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Published in Madroño, in 1934, in volume 2, issue 16, pages 136
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Published in Madroño, in 1935, in volume 3, issue 4, pages 178-180
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Published in Madroño, in 1941, in volume 6, issue 2, pages 63
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Published in Madroño, in 1943, in volume 7, issue 2, pages 33-35
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Published in Novon, in 2002, in volume 12, pages 441-445
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Published in Madroño, in 1939, in volume 5, issue 2, pages 74
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Published in Madroño, in 1936, in volume 3, issue 6, pages 256
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Published in Madroño, in 1936, in volume 3, issue 5, pages 224
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Published in Madroño, in 1933, in volume 2, issue 11, pages 92-93
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Published in Madroño, in 1934, in volume 2, issue 17, pages 160
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Published in Madroño, in 1935, in volume 3, issue 1, pages 32
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Published in Madroño, in 1935, in volume 3, issue 2, pages 116
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Published in Madroño, in 1939, in volume 5, issue 2, pages 79-80
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Published in Madroño, in 1940, in volume 5, issue 8, pages 250-270
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Published in Madroño, in 1941, in volume 6, issue 1, pages 30-32
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Published in Madroño, in 1936, in volume 3, issue 8, pages 373-374
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Published in Madroño, in 1931, in volume 2, issue 3, pages 30-31
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Published in Madroño, in 1932, in volume 2, issue 9, pages 76-80
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Published in Contributions From The University of Michigan Herbarium, in 1980, in volume 14, pages 53-56
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Published in Madroño, in 1933, in volume 2, issue 12, pages 103-104
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Published in Contributions From The University of Michigan Herbarium, in 1997, in volume 21, pages 147-159
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Published in Contributions From The University of Michigan Herbarium, in 2001, in volume 23, pages 107-114
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Published in Madroño, in 1939, in volume 5, issue 4, pages 135-136
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Published in Madroño, in 1943, in volume 7, issue 2, pages 63-64
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Published in Annals of the Missouri Botanical Garden, in 1972, in volume 59, pages 174-202
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Published in Contributions From The University of Michigan Herbarium, in 1999, in volume 22, pages 29-31
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Published in Contributions From The University of Michigan Herbarium, in 1978, in volume 11, pages 281-283
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Published in Contributions From The University of Michigan Herbarium, in 1987, in volume 16, pages 135-140
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Published in Contributions From The University of Michigan Herbarium, in 1995, in volume 20, pages 129-140
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Published in Madroño, in 1942, in volume 6, issue 5, pages 173-175
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Published in Phytologia, in 1985, in volume 58, issue 2, pages 105-164
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Published in Madroño, in 1963, in volume 17, issue 4, pages 115
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Published in Contributions From The University of Michigan Herbarium, in 1980, in volume 14, pages 25-52
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Published in Contributions From The University of Michigan Herbarium, in 1990, in volume 17, pages 71-81
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Published in Contributions From The University of Michigan Herbarium, in 1987, in volume 16, pages 141-143
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Published in Contributions From The University of Michigan Herbarium, in 1990, in volume 17, pages 93-97
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Published in Journal of The Washington Academy of Sciences, in 1958, in volume 48, pages 18-21
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Published in Contributions From The University of Michigan Herbarium, in 1990, in volume 17, pages 83-91
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Published in Contributions From The University of Michigan Herbarium, in 1999, in volume 22, pages 131-134
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Published in Western Australian Naturalist, in 1984, in volume 16, issue 1, pages 21
Created: 2021-03-28, modified: 2021-03-28
Published in Rhodora, in 1905, in volume 7, issue 84, pages 269
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Published in Madroño, in 1946, in volume 8, issue 6, pages 193-195
Created: 2016-02-15, modified: 2016-07-07
Published in Journal of The Arnold Arboretum, in 1982, in volume 63, issue 1, pages 63-81
Created: 2017-11-11, modified: 2017-11-11