Australian Systematic Botany Australian Systematic Botany Society
Taxonomy, biogeography and evolution of plants
RESEARCH ARTICLE

Austrobasidium, a new gall-forming genus of Exobasidiaceae (Exobasidiales, Basidiomycota) on Hydrangea serratifolia from Chile

Götz Palfner

Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Laboratorio de Química de Productos Naturales, Universidad de Concepción, Casilla 160-C, Concepción, Chile. Email: goetz.palfner@gmail.com

Australian Systematic Botany 19(5) 431-436 https://doi.org/10.1071/SB05026
Submitted: 15 August 2005  Accepted: 13 June 2006   Published: 19 October 2006

Abstract

Austrobasidium pehueldeni gen. & sp. nov. is described on Hydrangea serratifolia (H. et A.) F. Phil. from Chile. This study adds to the very few reports of Exobasidiales causing formation of stem galls and presents the first species known to parasitise a woody epiphyte and member of Hydrangeaceae (Cornales). A. pehueldeni is compared to the morphologically very similar Laurobasidium lauri (Geyler) Jülich and the systematic position of both species is discussed.


Acknowledgments

The author thanks the Forestry Department of the La Frontera University, Temuco for the permission to perform fungal surveys in the Rucamanque forest reserve, Luciano Figueroa, keeper of the Rucamanque forest reserve for his valuable help during the search for fresh specimens, Dr Roberto Godoy, Valdivia, Gonzalo Tortella, Temuco, and Cesar Donoso, Concepción for the collection of additional material, Dr Angélica Casanova-Katny, Concepción, for the skillful preparation of hand sections, and the team of the laboratory for electron microscopy at the University of Concepción, especially Raúl Alarcón, Hugo Pacheco and Julio Pugin, for their professional technical assistance. The first version of the manuscript was substantially improved thanks to the valuable critical comments of two anonymous referees. This study received financial support from FONDECYT (Fondo Nacional de Desarrollo Científico y Tecnológico) projects no. 1950313 and 1040445.


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