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First published on December 22, 2009
Mycologia 2009
DOI: 10.3852/09-173
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© 2009 by The Mycological Society of America

Rust fungi on Annonaceae: The genus Sphaerophragmium


Ludwig Beenken 1,*
Reinhard Berndt 2

     1 Institute of Integrative Biology (IBZ), ETH Zurich, Universitätstrasse 16 CHN G 35.1, Zurich, 8092, Switzerland
2 ETH Zurich, Institute of Integrative Biology (IBZ), Zurich, 8092, Switzerland

Seven species of the rust genus Sphaerophragmium occur on members of the tropical plant family Annonaceae. Uropyxis gerstneri is recombined to S. gerstneri. A new species, S. xylopiae, is described from Xylopia acutiflora. The host plant of S. boanense is identified as Mitrella sp. Sphaerophragmium pulchrum is transferred to Dicheirinia. The anatomy of telia with teliospores and parasitizing mycelium is described and illustrated in detail. A new type of M-haustorium, which emanates laterally from intracellular hypha, is detected in S. monodorae. An identification key is given.

Key words: Dicheirinia, M-haustoria, Raveneliaceae, Uredinales, Africa

* Institute of Integrative Biology (IBZ), ETH Zurich, Universitätstrasse 16 CHN G 35.1, Zurich, 8092, Switzerland ludwig.beenken{at}env.ethz.ch






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Copyright © 2009 by The Mycological Society of America.