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Betula , Sp. Pl. 982. 1753. Boiss., Fl.Or.4:1180.1879; Hook f., Fl.Brit.Ind. 5:599. 1888; Winkler in Engl.,Pflanzenr.Betul.56.1904; Kuzeneva in Komarov, Fl. URSS.5:269.1936; S.M.Walters in Tutin et al, Fl.Eur.1:57. 1964; Hutch., Gen. Flow.Pl.2:126.1967; Browicz in Rech.f.,Fl.Iran. 96:1-5.1972.
Trees or shrubs. Male flowers in solitary or axillary clusters of 2-4-catkins; bracteoles 2, not united to the bract. Stamens 2, filament forked and separating the anthers. In female flowers the 2 bracteoles are united to the bract to form a 3-lobed fruiting scale which is deciduous. Nut with a mem¬branous or winged margin.
A genus of c. 60 species, found in the N. temperate and the Arctic regions of Europe and Asia and the Andes in S. America. Represented here by 1 species only.
Lower Taxon
Related Synonym(s):
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