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DRYOPTERIS EXPANSA AND D. × AMBROSEAE (PTERIDOPHYTA) NEW FOR BELGIUM

Ronald L. L. VIANE
Bulletin de la Société Royale de Botanique de Belgique / Bulletin van de Koninklijke Belgische Botanische Vereniging
T. 118, Fasc. 1 (1985), pp. 57-67
Stable URL: http://www.jstor.org/stable/20794026
Page Count: 11
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
DRYOPTERIS EXPANSA AND D. × AMBROSEAE (PTERIDOPHYTA) NEW FOR BELGIUM
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Abstract

D. expansa and D. × ambroseae are reported from the Belgian "High Ardennes". A chromosome count (n = 41) was made for D. expansa, by H. Rasbach. Microscopical study reveals that micromorphological characters can be used for separating D. expansa from its relatives. D. expansa et D. × ambroseae ont été trouvés dans la "Haute Ardenne" belge. Les chromosomes ont été comptés (n = 41) pour D. expansa. L'étude microscopique montre que des caractères micromorphologiques peuvent être utilisés pour séparer D. expansa des espèces voisines.

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