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

Mycologia. Sep-Oct 2014;106(5):1039-50. doi: 10.3852/13-402. Epub 2014 Jul 1.

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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Base Sequence
  • China
  • Coriolaceae / classification*
  • Coriolaceae / cytology
  • Coriolaceae / genetics
  • Coriolaceae / isolation & purification
  • DNA, Fungal / chemistry
  • DNA, Fungal / genetics
  • DNA, Ribosomal / chemistry
  • DNA, Ribosomal / genetics
  • DNA, Ribosomal Spacer / chemistry
  • DNA, Ribosomal Spacer / genetics
  • Fruiting Bodies, Fungal
  • Molecular Sequence Data
  • Phylogeny
  • Quercus / microbiology*
  • Sequence Analysis, DNA
  • Spores, Fungal

Substances

  • DNA, Fungal
  • DNA, Ribosomal
  • DNA, Ribosomal Spacer