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Search for "XEROCOMUS|quercinus": 2 articles found in Index.

ŠUTARA J. (2008): Xerocomus s. l. in the light of the present state of knowledge.   [Boletaceae, Xerocomus, Xerocomellus, Hemileccinum, generic taxonomy, anatomy, histology]  Czech Mycology 60(1): 29-62   (published: 4th July, 2008)
  abstract   The definition of the generic limits of Xerocomus s. l. and particularly the delimitation of this genus from Boletus is very unclear and controversial. During his study of European species of the Boletaceae, the author has come to the conclusion that Xerocomus in a wide concept is a heterogeneous mixture of several groups of species. These groups are separated from each other by different anatomical and some other characters. Also recent molecular studies show that Xerocomus s. l. is not a monophyletic group. In agreement with these facts, the European species of Xerocomus s. l. whose anatomy was studied by the present author are here classified into the following, more distinctly delimited genera: Xerocomus s. str., Phylloporus, Xerocomellus gen. nov., Hemileccinum gen. nov. and Pseudoboletus.Boletus badius and Boletus moravicus, also often treated as species of Xerocomus, are retained for the present in the genus Boletus. The differences between Xerocomus s. str., Phylloporus, Xerocomellus, Hemileccinum, Pseudoboletus and Boletus (which is related to this group of genera) are discussed in detail. Two new genera, Xerocomellus and Hemileccinum, and necessary new combinations of species names are proposed.

ŠUTARA J., SKÁLA E. (2007): Boletus marekii, a new species with truncate spores from the Boletus chrysenteron group.   [Boletus marekii spec. nov., Boletus subgen. Xerocomus, Boletaceae, Czech Republic]  Czech Mycology 59(1): 11-24   (published: 28th June, 2007)
  abstract   Boletus marekii, a new species which was found in northwestern Bohemia (Czech Republic), is described. This species, belonging to the Boletus chrysenteron group (Boletus subgen. Xerocomus), is characterised mainly by its xerocomoid appearance, red-coloured, soon coarsely rimose-areolate pileus and smooth, truncate spores. Characters distinguishing Boletus marekii from other species of this group, e.g. Boletus armeniacus, Boletus rubellus, Boletus porosporus, Boletus fennicus, Boletus ripariellus and Boletus declivitatum, are discussed. A new combination, Boletus fennicus, is proposed.

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