Competition is the most common type of interaction occurring between wood-decaying higher fungi. Since competition for nutrients in organic resources is effectively brought about by competition for space, the common division into interference and exploitation competition is not very appropriate. Fungal competition can be divided into primary resource capture (obtaining uncolonized resources) an...

Marasmius fulvoferrugineus is a rather small agaric with a conspicuous reddish brown pileus which can be found quite frequently in the Great Smoky M ountains and the southern United States. Its natural habitats are plant debris or wood in mixed forests. It has been described as a new species by Gilliam [2], The species most close­ ly related is Marasmius siccus (Schwein.) Fr. which differs in t...

The new Tremella umbilicariae, lichenicolous on Umbilicaria, is described from Peru. It is characterized by large, dark brown, convex basidiomatal galls, long and narrow basidia, and relatively large basidiospores.

The new genus Neocampanella (Agaricales, Agaricomycetes, Basidiomycota) is established for Dentocorticium blastanos Boidin & Gilles, a crustose species, and the new combination, Neocampanella blastanos, is proposed. Morphological and molecular studies support the recognition of the new genus and its close ties to Campanella, a pleurotoid agaric. The recently described Brunneocorticium is a mono...

This paper is the fourth in a series documenting the Entolomataceae taxa (Agaricales, Basidiomycota) from Guyana. Six new species in three genera are described-Calliderma caeruleosplendens, Paraeccilia unicolorata, Trichopilus tibiiformis, T. fasciculatus, T. vividus, and T. luteolamellatus-occurring primarily in mixed tropical rainforests of the Potaro River Basin in the Pakaraima Mountains. M...

We expect that sexual selection may play an important role in the evolution of mushroom-forming basidiomycete fungi. Although these fungi do not have separate sexes, they do play female and male roles: the acceptance and the donation of a nucleus, respectively. The primary mycelium (monokaryon) of basidiomycete fungi, growing from a germinating sexual spore, is hermaphroditic, but it loses fema...

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