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Saprobic Dothideomycetes in Thailand: Neoaquastroma gen. nov. (Parabambusicolaceae) introduced based on morphological and molecular data

DHANUSHKA N. WANASINGHE, KEVIN D. HYDE, SIRINAPA KONTA, CHAIWAT TO-ANUN, E.B. GARETH JONES

Abstract


In this paper we introduce Neoaquastroma, a novel genus from dead twigs, collected in northern Thailand. The genus is characterized by immersed, globose to subglobose or irregular-shaped ascomata, short papillate ostioles, a thin peridium, clavate asci with short pedicels, and multi-septate, hyaline ascospores with guttules in each cell. The morphological character differences and analyses of combined LSU, TEF, SSU and ITS sequence datasets, from a single ascospore isolate, support the validity of the new genus and its placement in Parabambusicolaceae. The new genus is compared with other genera in the family and a comprehensive description, and micrographs are provided.


Keywords


Guttules, Massarineae, New genus, New species, Phylogeny, Fungi

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DOI: http://dx.doi.org/10.11646/phytotaxa.302.2.3

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ISSN 1179-3155 (print); ISSN 1179-3163 (online)

Published by Magnolia Press, Auckland, New Zealand