Abstract
Twelve taxa of theOxalis tuberosa alliance were analysed and found to share the same basic chromosome number x = 8. The karyotypes are composed by small metacentric and submetacentric chromosomes. Different ploidy levels were found among the taxa: there were 9 diploids, 1 tetraploid, 1 hexaploid and 1 octoploid. The last ploidy level corresponds toO. tuberosa, the only tuber bearing taxon found so far in the alliance. Cytotaxonomic evidence and evolutionary considerations suggest to classify theO. tuberosa alliance in sect.Herrerea.
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de Azkue, D., Martínez, A. Chromosome number of theOxalis tuberosa alliance (Oxalidaceae). Pl Syst Evol 169, 25–29 (1990). https://doi.org/10.1007/BF00935981
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DOI: https://doi.org/10.1007/BF00935981