Latest Articles from MycoKeys Latest 4 Articles from MycoKeys https://mycokeys.pensoft.net/ Thu, 28 Mar 2024 12:51:28 +0200 Pensoft FeedCreator https://mycokeys.pensoft.net/i/logo.jpg Latest Articles from MycoKeys https://mycokeys.pensoft.net/ Redelimitation of Heteroradulum (Auriculariales, Basidiomycota) with H. australiense sp. nov. https://mycokeys.pensoft.net/article/76425/ MycoKeys 86: 87-101

DOI: 10.3897/mycokeys.86.76425

Authors: Qian-Zhu Li, Shi-Liang Liu, Xue-Wei Wang, Tom W. May, Li-Wei Zhou

Abstract: Auriculariales accommodates species with diverse basidiomes and hymenophores. From morphological and phylogenetic perspectives, we perform a taxonomic study on Heteroradulum, a recently validated genus within the Auriculariales. The genus Grammatus is merged into Heteroradulum, and thus its generic type G. labyrinthinus is combined with Heteroradulum and G. semis is reaccepted as a member of Heteroradulum. Heteroradulum australiense is newly described on the basis of three Australian specimens. Heteroradulum yunnanense is excluded from this genus and its taxonomic position at the generic level is considered uncertain. Accordingly, the circumscription of Heteroradulum is re-delimited and the concept of this genus is adjusted by including irpicoid to poroid hymenophores and a hyphal system with clamp connections or simple septa. A key to all nine accepted species of Heteroradulum is presented.

HTML

XML

PDF

]]>
Research Article Wed, 19 Jan 2022 16:51:08 +0200
Type studies of Rossbeevera bispora, and a new species of Rossbeevera from south China https://mycokeys.pensoft.net/article/32775/ MycoKeys 51: 15-28

DOI: 10.3897/mycokeys.51.32775

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

Abstract: The type of Rossbeevera bispora 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.

HTML

XML

PDF

]]>
Research Article Mon, 15 Apr 2019 13:48:09 +0300
New species in Cortinarius section Cortinarius (Agaricales) from the Americas and Australasia https://mycokeys.pensoft.net/article/5409/ MycoKeys 11: 1-21

DOI: 10.3897/mycokeys.11.5409

Authors: Emma Harrower, Neale L. Bougher, Caitlin Winterbottom, Terry W. Henkel, Egon Horak, P. Brandon Matheny

Abstract: Five new species from Cortinarius sect. Cortinarius are formally described, four from the Americas (Cortinarius palatinus Harrower, sp. nov., Cortinarius atrotomentosus Harrower, sp. nov., Cortinarius altissimus Harrower & T.W. Henkel, sp. nov., Cortinarius neotropicus Harrower, sp. nov.) and one from Australasia (Cortinarius carneipallidus Harrower & E. Horak, sp. nov.) based on molecular, morphological, and ecological circumscription. Additional collections of the Australasian species Cortinarius hallowellensis Wood and Cortinarius kioloensis Wood reveal wider host associations and geographic ranges than previously recorded. Morphological descriptions, photomicrographs and a dichotomous key to all species in Cortinarius sect. Cortinarius are provided. This work raises the number of species in sect. Cortinarius to twelve.

HTML

XML

PDF

]]>
Research Article Thu, 3 Sep 2015 09:59:29 +0300
Molecular data support placement of Cameronia in Ostropomycetidae (Lecanoromycetes, Ascomycota) https://mycokeys.pensoft.net/article/1191/ MycoKeys 5: 31-44

DOI: 10.3897/mycokeys.5.4140

Authors: Thorsten Lumbsch, Gintaras Kantvilas, Sittiporn Parnmen

Abstract: The phylogenetic position of the Tasmanian endemic genus Cameronia Kantvilas is studied using partial sequences of nuclear LSU and mitochondrial SSU ribosomal DNA. Monophyly of the genus is supported, as is its placement in Ostropomycetidae, although its position within this subclass remains uncertain. Given the lack of close relatives to Cameronia and its morphological differences compared to other families with perithecioid ascomata in Ostropomycetidae, the new family Cameroniaceae Kantvilas & Lumbsch is proposed.

HTML

XML

PDF

]]>
Research Article Fri, 30 Nov 2012 00:00:00 +0200