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Two new hyphomycetes parasitic on leaves of Maianthemum species in Panama

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Abstract

Two species of dematiaceous hyphomycetes parasitic on leaves of Maianthemum gigas or M. paniculatum (Liliidae) in tropical mountain rainforests in Western Panama are described as new. One species is morphologically intermediate between Periconiella, Pseudocercosporidium, and Stenella. It is tentatively accommodated in Periconiella because of strongly branched conidiophores and verruculose external hyphae. It differs from other Periconiella species by stromata embedded in the substomatal chamber of the leaves. The other species belongs to Pseudocercospora and is described as new since no similar species of Pseudocercospora is known on species of Maianthemum or related genera. Both species are illustrated in detail with drawings based on light microscopy and images based on scanning electron microscopy.

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Acknowledgements

We are grateful to the Autoridad Nacional del Ambiente (ANAM, Panama), the Universidad Autónoma de Chiriquí (UNACHI, David, Panama), the German Research Society (DFG), and the German Academic Exchange Service (DAAD) for financial and administrative support of our studies, and M. Ruppel for technical assistance with SEM. We thank Juan Bernal, Rafael Rincón (Universidad Autónoma de Chiriquí), and Ralph Mangelsdorff (University of Frankfurt am Main) for assisting in collecting specimens and identification of host plants.

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Authors and Affiliations

  1. Department of Mycology, Institute for Ecology, Evolution and Diversity, J.W. Goethe-University, Siesmayerstr. 70, Building B, 60323, Frankfurt, Germany

    Roland Kirschner & Meike Piepenbring

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  1. Roland Kirschner
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  2. Meike Piepenbring
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Correspondence to Roland Kirschner.

Additional information

Taxonomic novelties: Periconiella maianthemi R. Kirschner, Pseudocercospora maianthemi R. Kirschner

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Kirschner, R., Piepenbring, M. Two new hyphomycetes parasitic on leaves of Maianthemum species in Panama. Mycol Progress 7, 21–29 (2008). https://doi.org/10.1007/s11557-007-0549-6

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  • DOI: https://doi.org/10.1007/s11557-007-0549-6

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