Sphaeronectria Darmostuk, Etayo & Flakus, 2025
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publication ID |
https://doi.org/10.3114/persoonia.2025.54.02 |
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persistent identifier |
https://treatment.plazi.org/id/03C58047-FFE5-7605-FF8D-639CDC9B6DA7 |
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treatment provided by |
Felipe |
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scientific name |
Sphaeronectria Darmostuk, Etayo & Flakus |
| status |
gen. nov. |
Sphaeronectria Darmostuk, Etayo & Flakus , gen. nov. MycoBank MB 858389.
Etymology: Referring to the globose ascomata.
Type species: Sphaeronectria Darmostuk, Etayo & Flakus lichenophila (Speg.)
Ascomata perithecioid, superficial, globose to subglobose, constricted laterally or apically, yellowish to orange, with tiny tomentum on the lower part of ascomata, 150–250 μm diam., covered by abundant septate hyaline hyphae, 50–100 µm long. Ascomatal wall formed by several layers of cells, hyaline to pale yellowish in the outer part, up to 20 μm thick, superficially paraplectenchymatous, KOH–. Asci unitunicate, subcylindrical, 4-spored, without apical thickness. Ascospores hyaline, 1-septate, ellipsoid, with pointed ends, slightly constricted at the septa, smooth-walled. Conidiomata not observed.
Notes: Previously the type species of Sphaeronectria ( S. lichenophila ) was included in the genus Nectriopsis , typified by N. violacea , but based on our phylogenetic results, S. lichenophila showed a different phylogenetic position in Paranectriaceae , whereas Nectriopsis is a member of Bionectriaceae . Currently, the genus is monotypic.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.