| Aster laevis L. | Chmielewski, J. G. 1987. Cytogeographic studies of North American Asters. III. Asters of southern Ontario. Rhodora 89: 41–45. | 86-87 | | 48 |
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| Aster laevis L. | Semple, J. C. 1983. Range expansion of Heterotheca camporum (Compositae: Asteraceae) in the southeastern United States. Brittonia 35(2): 140–146. | 82-83 | | 48 |
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| Aster laevis L. | Brouillet, L. 1983. Nombres chromosomiques chez les Aster du groupe Heterophylli (Asteraceae-Astereae). Naturaliste Canad. 110: 171–178. | 82-83 | | 48 |
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| Aster laevis L. | Dean, M. L. & K. L. Chambers. 1983. Chromosome numbers and evolutionary patterns in the Aster occidentalis (Asteraceae) polyploid complex of western North America. Brittonia 35: 189–196. | 82-83 | 24II | |
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| Aster laevis L. | Hill, M. L. 1983. Chromosome numbers of twelve species of Aster (Asteraceae) from Virginia. Castanea 48: 212–217. | 82-83 | 24 | |
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| Aster laevis L. | Hunziker, J. H., A. Escobar, C. C. Xifred & J. C. Gamerro. 1990. Estudios cariologicos en Compositae. VI. Darwiniana 30: 115–121. | 90-91 | 24 | |
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| Aster laevis L. | Morton, J. K. 1981. Chromosome numbers in Compositae from Canada and the U.S.A. Bot. J. Linn. Soc. 82: 357–368. | 79-81 | 24II | 48 |
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| Aster laevis L. | Semple, J. C. & L. Brouillet. 1980. Chromosome numbers and satellite chromosome morphology in Aster and Lasallea. Amer. J. Bot. 67(7): 1027–1039. | 79-81 | | 48 |
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| Aster laevis L. | Semple, J. C. & L. Brouillet. 1980. Chromosome numbers and satellite chromosome morphology in Aster and Lasallea. Amer. J. Bot. 67(7): 1027–1039. | 79-81 | | 48, ca 56 |
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| Aster laevis L. | Semple, J. C. & L. Brouillet. 1980. Chromosome numbers and satellite chromosome morphology in Aster and Lasallea. Amer. J. Bot. 67(7): 1027–1039. | 79-81 | 24 | 48 |
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| Aster laevis L. | Jones, A. M. 1977. New data on chromosome numbers in Aster sect. heterophylli (Asteraceae) and their phytogenetic implications. Syst. Bot. 2: 334–347. | 79-81 | | 24 |
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| Aster laevis L. | Jones, A. M. 1977. New data on chromosome numbers in Aster sect. heterophylli (Asteraceae) and their phytogenetic implications. Syst. Bot. 2: 334–347. | 79-81 | 24 | 48 |
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