Abstract
Chromosome numbers forAster brachyactis, A. frondosus, andA. laurentianus were determined to be 2n=14. The latter two are the first documented records for these taxa. The basic chromosome number for sectionConyzopsis is confirmed asx=7.
Literature Cited
Allen, G. A. 1984. Morphological and cytological variation in the western North AmericanAster occidentalis complex (Asteraceae). Syst. Bot. 9: 175–192.
Allen, G. A., M. L. Dean & K. L. Chambers. 1983. Hybridization studies in theAster occidentalis (Asteraceae) polyploid complex of western North America. Brittonia 35: 353–361.
Bentham, G. & J. D. Hooker. 1873 Genera plantarum. Vol. 2. L. Reeve and Co., London.
Bowden, W. M. 1966.In: IOPB chromosome number reports VIII. Taxon 15: 279–284.
Cronquist, A. 1943. Revision of the western North American species ofAster centering aboutAster foliaceus Lindl. Amer. Midl. Nat. 29: 429–468.
Dean, M. L. & K. L. Chambers 1983. Chromosome numbers and evolutionary patterns in theAster occidentalis (Asteraceae) polyploid complex of western North America. Brittonia 35: 189–196.
Fernald, M. L. 1950. Gray's manual of botany. 8th ed. American Book, New York.
Gray, A. 1880. Contributions to North American botany. I. Notes on some Compositae. Proc. Amer. Acad. Arts 16: 78–102.
Hooker, J. D. 1881. The flora of British India. Vol. 3. Reeve and Co., London.
Jones, A. G. 1980a. A classification of the New World species ofAster (Asteraceae). Brittonia 32: 230–239.
Jones, A. G. 1980b. Data on chromosome numbers inAster (Asteraceae), with comments on the status and relationship of certain North American species. Brittonia 32: 240–261.
Jones, A. G. 1984. Nomenclatural notes onAster (Asteraceae). II. New combinations and some transfers. Phytologia 55: 373–388.
Jones, A. G. 1985. Chromosomal features as generic criteria in the Astereae.In: M. L. Lane & B. L. Turner, editors. The generic concept in the Compositae: A symposium. Taxon 34: 44–54.
Jones, A. G. & D. A. Young. 1983. Generic concepts ofAster (Asteraceae): A comparison of cladistic, phenetic, and cytological approaches. Syst. Bot. 8: 74–84.
Kitamura, S. 1960. Flora of Afghanistan. Comm. Kyoto Univ. Sci. Exped. Karakoram and Hindukush, 1955. Vol. 2.
Kitamura, S. editor. 1964. Plants of West Pakistan and Afghanistan. Comm. Kyoto Univ. Sci. Exped. Karakoram and Hindukush, 1955. Vol. 3.
Löve, A. & D. Löve. 1982.In: IOPB chromosome number reports LXXV. Taxon 31: 342–368.
Mehra, P. N. & P. Remanandan. 1969.In: IOPB chromosome number reports XII. Taxon 18: 433–442.
Mehra, P. N. & P. Remanandan. 1974. Cytological investigations on Indian Compositae: II. Astereae, Heliantheae Helenieae and Anthemideae. Caryologia 27: 255–284.
Morton, J. K. 1981. Chromosome numbers in Compositae from Canada and the U.S.A. Bot. J. Linn. Soc. 82: 357–368.
Podlech, D. & A. Dieterle. 1969. Chromosomenstudien an afghanischen Pflanzen. Candollea 24: 185–243.
Semple, J. C. & L. Brouillet. 1980a. A synopsis of North American asters: The subgenera, sections and subsections ofAster andLasallea. Amer. J. Bot. 67: 1010–1026.
Semple, J. C. & L. Brouillet. 1980b. Chromosome numbers and satellite chromosome morphology inAster andLasallea. Amer. J. Bot. 67: 1027–1039.
Semple, J. C., J. G. Chmielewski & C. C. Chinnappa. 1983. Chromosome number determinations inAster L. (Compositae) with comments on cytogeography, phylogeny and chromosome morphology. Amer. J. Bot. 70: 1432–1443.
Tamamschjan, O. 1959. Astereae. Pp. 24–290.In: V. L. Komarov, editor. Flora U.S.S.R. Vol. 25, Bot. Inst. Acad. Sci. USSR, Leningrad.
Torrey, J. & A. Gray. 1841. Flora North America 2: 162.
Wu, Z. 1983. On the significance of Pacific intercontinental discontinuity. Ann. Missouri Bot. Gard. 70: 577–590.
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Houle, F., Brouillet, L. Chromosome number determinations in Aster section Conyzopsis (Asteraceae). Brittonia 37, 369–372 (1985). https://doi.org/10.2307/2806550
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DOI: https://doi.org/10.2307/2806550