IMA Fungus 15(1): e34119, doi: 10.1186/s43008-024-00168-3
New insights on the Xylaria species (Ascomycota, Xylariales) with bright-coloured exudates: Xylaria aurantiorubroguttata sp. nov. and revision of X. haemorrhoidalis and X. anisopleura type collections
expand article infoNiccolo' Forin, Alfredo Vizzini‡, Mario Amalfi§, Samuele Voyron|, Enrico Ercole, Simone Marcolini#, Silvia Moschin#, Barbara Baldan#
‡ University of Turin, Turin, Italy§ Botanic Garden of Meise, Meise, Belgium| University of Torino, Department of Life Sciences and Systems Biology, Turin, Italy¶ University of Torino, Department of Life Sciences and Systems Biology, Torino, Italy# University of Padova, Botanical Garden, Padua, Italy
© Niccolo' Forin, Alfredo Vizzini, Mario Amalfi, Samuele Voyron, Enrico Ercole, Simone Marcolini, Silvia Moschin, Barbara Baldan.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY-NC 4.0), which permits to copy and distribute the article for non-commercial purposes, provided that the article is not altered or modified and the original author and source are credited.
Citation: Forin N', Vizzini A, Amalfi M, Voyron S, Ercole E, Marcolini S, Moschin S, Baldan B (2024) New insights on the Xylaria species (Ascomycota, Xylariales) with bright-coloured exudates: Xylaria aurantiorubroguttata sp. nov. and revision of X. haemorrhoidalis and X. anisopleura type collections. IMA Fungus 15(1): e34119. https://doi.org/10.1186/s43008-024-00168-3
Open Access
Abstract
A new species of Xylaria is described based on morphological characters of both sexual and asexual morphs, and molecular data based on nuclear rDNA internal transcribed spacer, α-actin, β-tubulin and RNA polymerase subunit II sequences. Xylaria aurantiorubroguttata is characterized by the presence of both upright, cylindrical, long-stipitate and globose to subglobose, short-stipitate stromata, immature stromatal stages producing at first orange and then red drops, and ascospores with a slightly oblique, straight half spore-length germ slit. We provide also new morphological descriptions for X. haemorrhoidalis (holotype) and X. anisopleura (isosyntype), two Xylaria species belonging to X. polymorpha complex together with X. aurantiorubroguttata.
Keywords
Sordariomycetes, Xylariaceae, Xylaria aurantiorubroguttata new taxon, Xylaria polymorpha complex, Taxonomy