Morphological and molecular evidence for two new species of Laetiporus (Basidiomycota, Polyporales) from southwestern China.

Mycologia, 2014/9-2014/10;106(5):1039-50.

Song J[1], Chen Y[1], Cui B[2], Liu H[3], Wang Y[4]

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PMID: 24987130DOI: 10.3852/13-402

Impact factor: 2.958

Abstract
Two Laetiporus species, L. ailaoshanensis and L. zonatus spp. nov., are described from southwestern China based on morphological and molecular characters. Laetiporus ailaoshanensis is characterized by orange-yellow to reddish orange pileal surface and cream to buff pores when fresh, azonate to faintly zonate pileus, ovoid to ellipsoid basidiospores (5.0-6.2 × 4.0-5.0 μm), and it has been observed only on Lithocarpus. Laetiporus zonatus is characterized by white to cream pileal surface with buff to clay-buff base when fresh, concentrically zonate basidiocarps, ellipsoid to pyriform or drop-shaped basidiospores (5.8-7.2 × 4.3-5.5 μm), and it has been found only on Quercus. The phylogenetic relationships of all recognized Laetiporus species were inferred from a combined dataset of ITS and nLSU-rDNA sequences, and L. ailaoshanensis and L. zonatus represent two new lineages in this group.

Keywords: Fomitopsidaceae; brown-rot fungi; phylogeny; polypore; taxonomy

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