Type studies of Rossbeevera bispora, and a new species of Rossbeevera from south China

By

Hosen, Md. Iqbal
Zhong, Xiang-Jing
Gates, Genevieve
Orihara , Takamichi
Li, Tai-Hui

Type

Article

Date of Publication

2019

Original Publication

NeoBiota : advancing research on alien species and biological invasions

Volume

51

Pages

15-28

Subjects

Boletaceae , East Asia , multi-locus phylogeny , new taxon , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sophia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/mycokeys.51.32775

 

Abstract

The type of Rossbeeverabispora and additional collections from the type location and adjacent areas were studied. Molecular data for R.bispora derived from the new collections are provided. In addition, R.griseobrunnea, a new species of Rossbeevera, is described from Xiangtoushan National Nature Reserve, Guangdong Province of China. The new species is characterized by its globose to subglobose sequestrate basidiomata with grayish white to grayish brown pileus, pale bluish discoloration in some parts of the hymenophore when injured becoming rusty brown to dark brown after being exposed to the air, fusoid (star-shaped in cross section) basidiospores 17–20 × 9–12 μm, and subcutis elements in the pileus. Based on multi-locus (ITS+nrLSU+tef1-α+rpb2) molecular phylogenetic analyses, both species appear as sister to R.paracyanea. We present color photos, macro- and micro-description, SEM basidiospores, molecular affinities of the species and compare them with morphologically similar taxa within the genus. A key to the species known from northern and southern hemispheres is provided.