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Mycologia, 95(5), 2003, pp. 934-942.
© 2003 by The Mycological Society of America

A new species of Brevilegnia (Saprolegniales, Straminipila) from Buenos Aires Province, Argentina


Mónica Mirta Steciow 1

     Instituto de Botánica Spegazzini, 53 No. 477, (1900) La Plata, Buenos Aires, Argentina

Brevilegnia ensenadensis sp. nov. is described from litter (floating twigs, leaves, and roots) in a man-made, polluted channel near a petroleum refinery, in Buenos Aires Province, Argentina. The species is illustrated and compared with other species of the genus; it can be identified by the preponderance of smooth or papillate oogonia, with a distinctive irregular inner wall, borne in bent or coiled oogonial stalks, which are terminal, lateral or of the intercalary position. The oogonia often are irregular in shape, and the oospheres mostly are immature. The single oospore is eccentric inside the great oogonia, and the species develops mainly diclinous antheridial branches and has fewer monoclinous and androgynous ones.

Key words: Oomycota, Straminipiles, systematics






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Copyright © 2003 by The Mycological Society of America.