Sergio P. Gorjón

Fungal biodiversity and in situ conservation in Italy.

Abstract A remarkable increase in knowledge of fungal biodiversity in Italy has occurred in the last five years. The authors report up-to-date numbers of fungi (Basidiomycota and Ascomycota) by regions together with distributional and ecological data on hypogeous fungi. Specific case studies such as alpine fungi, orchid mycorrhizas symbionts, invasive species, and the use of macrofungi as food by red squirrels are analyzed. In situ conservation strategies carried out on target species and/or taxonomic groups are also indicated.

A phylogenetic analysis of Antrodia s.l. based on nrDNA ITS sequences, with emphasis on rhizomorphic European species

The rhizomorphic European species of Antrodia, belonging to the traditionally called Antrodia radiculosa group, are investigated. On the basis of morphological and molecular analysis, the genus Fibroporia is supported. Specimens from Central Europe previously ascribed to Antrodia radiculosa constitute a species of their own, and are herein described as Fibroporia bohemica. Moreover, a new combination, Fibroporia citrina, is proposed.

The genus Aleurodiscus s.l. (Stereaceae, Russulales) in the Patagonian Andes

The genus Aleurodiscus s.l. in Patagonia is revised and ten species are reported, commented on, and illustrated. Aleurodiscus bernicchiae, A. corticola, A. hallenbergii, A. quilae, and A. stratosus, are proposed as new. Aleurodiscus parmuliformis is recorded for the first time out of New Zealand. A key to the species of Aleurodiscus from Patagonia is included.

Some new species and a first checklist of corticioid fungi (Basidiomycota) from Chile

Gloeocystidiellum rajchenbergii, Hypochnicium patagonicum, Pteridomyces valdivianus, and Stereum greslebinii are described as new species from the Chilean Patagonia. An annotated checklist of corticioid fungi from Chile, listing 94 species with notes on distribution and ecology, scheduled for regular update, is available from http://corticioids.webs.com/checklists.htm.

Notes on Amylocorticiellum ( Amylocorticiales, Basidiomycota ), with some new combinations

A review of the known species in Amylocorticiellum is provided. Amylocorticiellum molle is reported as new to Argentina as well to the Southern Hemisphere. Three combinations in Amylocorticiellum, A. iaganicum, A. luteolum, and A. oblongisporum, are proposed, and a key to all accepted species is provided.

Subulicystidium curvisporum sp. nov. (Hymenochaetales, Basidiomycota) from the Patagonian Andes

Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET) Argentina*Correspondence to: spgorjon@usal.esAbstract — Subulicystidium curvisporum is described as a new species from the Patagonian Andes forests. It differs from its closest related species, S. longisporum and S. perlongisporum, in considerably longer and characteristically curved basidiospores. A key to all known Subulicystidium species is included, and the new species is compared with other species in the genus.Key words — Argentina, corticioid fungi, Nothofagus dombeyi, Patagonia, taxonomy

Phylogenetic relationships of Hydnum peroxydatum support the synonymy of Hydnochaete with Hymenochaete (Hymenochaetaceae, Agaricomycetes).

A combined dataset of rDNA ITS and LSU sequences was used to infer the phylogenetic relationships of Hydnochaete peroxydata (≡ Hydnum peroxydatum), the type species of Hydnochaete. The species was retrieved nested within the Hymenochaete s. str. clade; therefore Hydnochaete is regarded as a synonym of Hymenochaete and the new combination Hymenochaete peroxydata is proposed.

Arrasia rostrata (Basidiomycota), a new corticioid genus and species from Italy

An unusual corticioid species with distinctive large basidiospores that develop a distal refractive rostrum when fully mature is described as new. It grows on living bark of Juniperus phoenicea on the Italian island of Sardinia. Because it is morphologically distinct from any known genus of corticioid fungi, the new genus Arrasia is proposed to accommodate it.