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Microthyrium pinophyllum (Hhn.) Petr., Annls mycol. 25: 326 (1927)

Calothyriella pinophylla Hhn., Annls mycol. 15(5): 372 (1917) [1918]

Description: Hyphae superficial, pale yellow, 12 m wide. Ascoma thyriothecioid, mainly epiphyllous, orbicular, up to 150 m diam., sometimes confluent; scutellum composed of wavy radiating rows of pale brown, irregularly quadrilateral cells 254 36 m; those surrounding the ostiole not forming a distinct collar, those at the margin elongated to form an irregular fringe; ostiole 68 m diam. Asci numerous, cylindrical to obclavate, 2832 811 m, 8-spored. Ascospores hyaline, 1-septate, ellipsoidal, 811 23 m, the upper cell longer and broader that the lower cell, bearing medianly six appendages in two tufts connected by a short dark thread, appendages longer than the spore
Anamorph unknown.

The genus Microthyrium, Paul Kirk

Microthyriaceae, Microthyriales, Incertae sedis, Dothideomycetes, Ascomycota

FRDBI summary data (75 records)

Distribution Map from NBN Gateway

Distribution Map from GBIF Portal

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