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Lichenopeltella nigroannulata (J. Webster) P.M. Kirk & Minter, IMI Descriptions of Fungi and Bacteria 174(nos 1731-1740): [2] (2007)

Microthyrium nigroannulatum J. Webster, Trans. Br. mycol. Soc. 35: 208 (1952)
Trichothyrina nigroannulata (J. Webster) J.P. Ellis, Trans. Br. mycol. Soc. 67: 393 (1976)
Micropeltopsis nigroannulata (J. Webster) Spooner & P.M. Kirk, Mycol. Res. 94: 229 (1990)

Description: Hyphae superficial, hyaline, septate, 1򉣸 祄 wide, scanty. Ascoma catathecioid, orbicular, scutate, scattered, 6090 祄 diam.; scutellum composed of an upper wall of radiating rows of pale brown quadrilateral cells 36 24 祄 and a similarly constructed lower wall of paler brown cells, those surrounding the ostiole forming a slightly differentiated collar of 13 rings of darker, thick-walled cells the inner ring slightly upturned, ostiole 68 祄 diam., occluded by a layer of pale brown polygonal cells, margin entire. Asci obclavate, 2026 68 祄, 8-spored. Ascospores hyaline to pale yellow, 1-septate, septum more or less median, ellipsoid to broadly fusiform, with 24 non杙ersistent guttules, 7򉣷0 1򉣹 祄, appendages apparently absent
Anamorph unknown.

Keys:
The genus Lichenopeltella, Paul Kirk

Microthyriaceae, Microthyriales, Incertae sedis, Dothideomycetes, Ascomycota

FRDBI summary data (50 records)

Distribution Map from NBN Gateway

Distribution Map from GBIF Portal

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