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DOI: 10.3852/08-154
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Mycologia, 101(2), 2009, pp. 239-242.
© 2009 by The Mycological Society of America

Maravalia perae, a new species of rust fungus on Pera from Brazil


Anibal A. de Carvalho, Jr. 1

     Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Pacheco Leão 915, CEP 22460-030, Rio de Janeiro, RJ, Brasil

Joe F. Hennen

     Botanical Research Institute of Texas (BRIT), 509 Pecan Street, Fort Worth, Texas 76102-4060

A new species of rust fungus, Maravalia perae on Pera sp. (Euphorbiaceae), from Brazil is proposed. Spermogonia are type 5 and aeciospores and urediniospores are asymetrically obovoid to ellipsoid, with a concave side and 3(–4) equatorial germ pores. Teliospore walls are 2–5 µm thick at apex around the apical germ pore. This set of characters differentiates M. perae from other species of Maravalia. A revised key to all known Maravalia species, including the newly discribed species, is provided.

Key words: Euphorbiaceae, pathogen, rust fungi, Uredinales

1 Corresponding author. Fax: (+55) 21 32042071; E-mail: anibal{at}jbrj.gov.br






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Copyright © 2009 by The Mycological Society of America.