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Typification of Nitella gracilis (Sm.) C. Agardh var. confervacea Brébisson (= N. confervacea (Brébisson) A. Braun ex Leonhardi) with remarks on its nomenclatural history

Thomas GREGOR, Uwe RAABE & Joop VAN RAAM

fr Cryptogamie, Algologie 33 (4) - Pages 391-392

Published on 30 November 2012
Typification of Nitella gracilis (Sm.) C. Agardh var. confervacea Brébisson (= N. confervacea (Brébisson) A. Braun ex Leonhardi) with remarks on its nomenclatural history

The correct name of the species of Nitella known as the "Least Stonewort" has long been under debate. The problem has now been resolved as Nitella confervacea (Brébisson) A. Braun ex Leonhardi. This taxon, once thought to be an endemic of north-western France, was neglected for a long time. The basionym Nitella gracilis var. confervacea Brébisson and other taxa connected to this name are typified, and their taxonomic status is assessed.


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GREGOR T., RAABE U. & VAN RAAM J. 2012. — Typification of Nitella gracilis (Sm.) C. Agardh var. confervacea Brébisson (= N. confervacea (Brébisson) A. Braun ex Leonhardi) with remarks on its nomenclatural history. Cryptogamie, Algologie 2012 (4): 391-392.