Flavonoids in the leaves of Polish species of the genus Betula L. V. The taxonomic position on the basis of flavonoid composition

Lucyna Pawłowska

Abstract


A comparison of the qualitative composition of leaves from specimens of Polish taxa of the genus Betula L. points to a specific distinction of B. pendula Roth., B. pubescens Ehrh., B. humilis Schrk., B. nana L., and B. oycoviensis Bess., and also B. "nova" which requires description according to the International Code of Botanical Nomenclature. B. obscura Kot. can be recognized only as a subspecies of B. pendula, whereas B. carpatica Waldst. and B. tortuosa Ledeb. may be geographical variaties of one and the same subspecies distinguished within B. pubescens.

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DOI: https://doi.org/10.5586/asbp.1982.038

Journal ISSN:
  • 2083-9480 (online)
  • 0001-6977 (print; ceased since 2016)
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Polish Botanical Society