Polyclypeolina
Polyclypeolina Bat. & I.H. Lima, in Batista, Publicações Inst. Micol. Recife 56: 457 (1959).
Index Fungorum number: IF 4307; Facesoffungi number: FoF 07899; 1 morphological species (Species Fungorum 2022), no molecular data available.
Saprobic, epiphyllous on dried leaves. Sexual morph: Ascomata epiphyllous, superficial, thyriothecial, irregular, scattered to loosely clustered, dark brown to black, slightly shield-like or shallow-convex, composed of epithecium membranaceous cells, edge entire, with apical ostiole. Peridium comprising multi-layers of dark brown cells of textura angularis. Hamathecium comprising branched, septate, hyaline, pseudoparaphyses. Asci 8-spored, bitunicate, fissitunicate, saccate, cylindric-clavate, pedicellate. Ascospores ellipsoid to fusiform, narrowly obovoid, 1- septate, constricted at the septum, upper cell wider, tapering towards narrow end, hyaline, smoothwalled. Asexual morph: Unknown (adapted from Boonmee et al. 2017).
Type species: Polyclypeolina brideliae (Hansf.) Bat.
Notes: Polyclypeolina is characterised by superficial, epiphyllous, dark pigmented thyriothecia, lacking penetrating hyphae. Luttrell (1973) included Polyclypeolina in the family Aulographaceae based on branched colonies, superficial, irregular, multi-loculate ascomata, with opening slit on the top anduniseptate, hyaline ascospores. Boonmee et al. (2017) placed Polyclypeolina in a new family Polyclypeolinaceae based on thyriothecium and ascospore features. Fresh collections with DNA sequence data are needed to confirm the systematic position of Polyclypeolina in Polyclypeolinaceae.
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