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

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:

Australian Systematic Botany 19(5) 431-436
Submitted: 15 August 2005  Accepted: 13 June 2006   Published: 19 October 2006


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.


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.


Bauer R , Begerow D , Oberwinkler F , Piepenbring M , Berbee ML (2001) Ustilaginomycetes. In ‘The Mycota VII, Part B’. (Eds DJ McLaughlin, EG McLaughlin, PA Lemke) pp. 57–83. (Springer: Berlin)

Begerow D, Bauer R, Oberwinkler F (2002) The Exobasidiales: an evolutionary hypothesis. Mycological Progress 1, 187–199.
CrossRef | open url image1

Döring H (2003) Molekularsystematische Untersuchungen an Vertretern der pflanzenparasitischen Gattung Exobasidium (Basidiomycota). PhD Thesis, University of Bayreuth.

Gómez LD, Kisimova-Horovitz L (1997) Basidiomicetos de Costa Rica. Exobasidiales, Cryptobasidiales. Notas históricas, taxonómicas y fitogeográficas. Revista de Biologia Tropical 45, 1293–1310. open url image1

Hoffmann AE (1995) ‘Flora Silvestre de Chile. Zona Araucana.’ 3rd edn. (Ediciones Fundación Claudio Gay)

Judd WS , Campbell CS , Kellogg EA , Stevens PF , Donoghue MJ (2002) ‘Plant systematics. A phylogenetic approach.’ 2nd edn. (Sinauer: Sunderland)

Jülich W (1982) On Exobasidium lauri. International Journal of Mycology and Lichenology 1, 117–120. open url image1

Marticorena C, Quezada M (1985) Catálogo de la flora vascular de Chile. Gayana Botánica 42, 5–157. open url image1

Mösbach EW (1992) ‘Botánica indígena de Chile.’ (Eds C Aldunate, C Villagrán) (Editorial Andrés Bello: Santiago)

Mujica FR , Vergara C , Oehrens EB (1980) ‘Flora fungosa de Chile.’ (Editorial Universitaria: Santiago)

Ramirez C, San Martin C, San Martin J, Villaseñor R (2004) Comparación fitosociológica de los bosques de Belloto (Beilschmiedia, Lauraceae) en Chile central. Bosque 25, 69–85. open url image1

Savile DBO (1959) Notes on Exobasidium. Canadian Journal of Botany 37, 641–656. open url image1

Export Citation