New Zealand Journal of Botany abstracts

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A new species of Saprolegnia (Saprolegniales, Straminipila), from a polluted Argentine channel

Mónica Mirta Steciow

Lorena Alejandra Elíades

Instituto de Botánica Spegazzini
53 N° 477
(1900) La Plata
Buenos Aires, Argentina

Abstract   Saprolegnia variabilis sp. nov. is described from litter (floating twigs, leaves, and roots) in a artificial polluted channel, near a petroleum refinery, in Buenos Aires Province, Argentina. The species is illustrated and compared with other species of the genus. It differs from S. australis in having mature subcentric oospores; the oogonia and the oospores are larger and more variable in shape and size, and the number of oospores is greater. The oogonial stalks are also variable in length and the zoosporangia are very much longer.

Keywords   Straminipila; Saprolegnia; Argentina; systematics

B01055 Received 5 November 2001; accepted 3 July 2002; published 28 November 2002
New Zealand Journal of Botany, 2002, Vol. 40: 679-685
0028-825X/02/4004-0679 $7.00 © The Royal Society of New Zealand 2002

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