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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Plant systematics and evolution 179 (1992), S. 1-18 
    ISSN: 1615-6110
    Keywords: Angiosperms ; Asteraceae ; Centaurea ; Acrocentron ; Karyology ; biogeography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The karyology ofCentaurea sect.Acrocentron is surveyed. 19 chromosome counts on 8 species are reported; those onC. acaulis, C. crocata, C. galianoi, C. pubescens, andC. malinvaldiana are new. The basic chromosome numbers of the section are x = 11 and x = 10. Karyological arguments have been used to show that evolution was from x = 11 to x = 10. This is supported by biogeographical data. Two main centres of diversification of sect.Acrocentron were studied from that point of view: the East and the Southwest Mediterranean region.
    Type of Medium: Electronic Resource
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