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Pluteus horakianus, a new species from Mexico, based on morphological and molecular data

Rodríguez, O., Galván-Corona, A., Villalobos-Arámbula, A.R., Vargas, G., Guzmán-Dávalos, L. (2008). Pluteus horakianus, a new species from Mexico, based on morphological and molecular data.

Sydowia 61 (1): 39–52

Pluteus horakianus is described here from Quercus, Pinus-Quercus and subtropical-montane cloud forests in Western Mexico. The species is morphologically similar to P. aurantiorugosus but is distinguished by its red pileus, the marginate lamellae with scarlet to orange-reddish edges, the red tinges on the stipe and the small and fragile basidiomata. The phylogeny inferred from ITS rDNA sequences revealed that P. horakianus represents a distinctive species within the well supported Celluloderma clade distantly related to the morphologically similar P. aurantiorugosus. A morphological description of the new species is supplemented by a photograph of a fresh basidioma and illustrations of the micromorphological features.

Keywords: Agaricales, Basidiomycota, ITS rDNA sequences, phylogeny, Pluteaceae

 

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