Karyology and systematics of the genusAmbavia and otherAnnonaceae from Madagascar

  title={Karyology and systematics of the genusAmbavia and otherAnnonaceae from Madagascar},
  author={W. Morawetz and A. L. Thomas},
  journal={Plant Systematics and Evolution},
New chromosome counts and nuclei structures are reported forAnnonaceae species from Madagascar:Ambavia (2n = 14),Xylopia (2n = 16) andPolyalthia (2n = 18). This first generic count ofAmbavia and its nucleotypic parameters underline its long term isolation from the African continent and it should be regarded as an extremely distinct member of the basic stock of AfricanAnnonaceae. Some karyological similarities are found with the African generaCleistopholis (2n = 14) andUvariopsis (2n = 16) and… Expand
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