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Plate 487. Betula lenta forma uber Betulaceae
Author(s) -
McAllister Hugh,
Ashburner Kenneth
Publication year - 2004
Publication title -
curtis's botanical magazine
Language(s) - English
Resource type - Journals
eISSN - 1467-8748
pISSN - 1355-4905
DOI - 10.1111/j.1467-8748.2004.00412.x
Subject(s) - betulaceae , botany , biology
Summary. Betula uber (Ashe) Fernald, the Virginia Round‐Leaf Birch, has been treated as the rarest of the forty or so species of birch and is the subject of a major conservation effort in the USA. However, despite its distinct appearance, there is much evidence, especially from its breeding behaviour, that it is no more than a forma of B. lenta L., albeit a very distinct one, with no intermediates between it and the normal form of B. lenta . An illustration and description are provided.