Betula papyrifera Marshall
Publ. & Syn.Marshall, Arbust. Amer.: 19 (1785). Described from North America.
Chromosomes(1) 54 56 (4x). - Canada. - Numerous reports.
(2) 70 (5x). - Canada. - Numerous reports.
(3) 84 (6x). - Canada. - Numerous reports.
Furlow (1997) accepted 2n = 56 (4x), 70 (5x), and 84 (6x).
Not included: Very many chromosome numbers are recorded for B. papyrifera. Fedorov (1969) and the IOPB lists have the following additional numbers: 2n = 28 (Löve and Löve 1982a); 62, ca. 130, and ca. 160 (Valanne 1972).
GeographyNorth American: CAN.
Distribution N = F     E = R     HL = r     [ key ]
Parent taxonBetula L.
PAF ID610204
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Panarctic Flora Editor-in-Chief: Reidar Elven (Natural History Museum, University of Oslo)
Editorial Committee: Reidar Elven, David F. Murray (Museum of the North, University of Alaska), Volodya Yu. Razzhivin (Komarov Botanical Institute, Russian Academy of Sciences), Boris A. Yurtsev [deceased] (Komarov Botanical Institute, Russian Academy of Sciences)