Abstract
In the present paper, three additional species of EntolomasubgenusPouzarella viz. E.erectoides, E.griseocarpum and E.rubropilosum are described from China. E.rubropilosum is a typical species in section Pouzarella; E.griseocarpum and E.erectoides are members of sect. Dysthales. The taxa are further confirmed by ITS, RPB2, LSU and mtSSU analyses and phylogenetic relationships with other Entolomasubgen.Pouzarella species are also discussed. ITS sequence analysis showed that the sizes of the entire ITS region and ITS1 are remarkably divergent, while the ITS2 is conserved in length within Entolomasubgen.Pouzarella. Molecular analyses, based on the combined dataset, demonstrated that species diversity of subgen.Pouzarella in China is much higher than previously thought, in the present study twenty phylogenetic species from China are taken into consideration. On the other hand, morphological and molecular analyses suggested that classification of Entolomasubgen.Pouzarella probably has to be fundamentally re-adjusted based on additional data.
Highlights
Pouzarella Mazzer is a distinctive group of entolomatoid species that was accepted as a genus by some researchers (Horak 2008; Largent 1994; Mazzer 1976)
Here we still treat it as a subgneus of Entoloma s.l. because accepting Pouzarella as a separate genus would make Entoloma s.l. paraphyletic
Taxonomical revision of other well supported, distinct clades of Entoloma s.l. is needed before a formal decision on the generic status of Pouzarella can be made
Summary
Pouzarella Mazzer is a distinctive group of entolomatoid species that was accepted as a genus by some researchers (Horak 2008; Largent 1994; Mazzer 1976). Pouzarella, phylogenetic analysis was carried out based on the combination of ITS, RPB2, mtSSU and nLSU sequences. Three new species of Entoloma subgenus Pouzarella from China... Phylogenetic analyses were based on the combined ITS, nLSU, RPB2 and mtSSU sequences.
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