Lepidopterella
Lepidopterella Shearer & J.L. Crane, Trans. Br. mycol. Soc. 75(2): 194 (1980).
Index Fungorum number: IF 2746; Facesoffungi number: FoF 06389, 2 morphological species (Species Fungorum 2022), 2 species with molecular data.
Saprobic on host. Sexual morph: Ascocarps solitary, superficial to slightly immersed, globose to subglobose, black, nonostiolate. Peridium pseudoparenchymatic, several layered, brown to black. Asci bitunicate, globose to subglobose, stalked, thick-walled, lacking a subapical chamber, 8-spored. Ectoascus rigid, rupturing by an apical slit. Ascospores papilionaceous, z-celled, brown. Asexual morph: Unknown (adapted from Shearer et al. 1980).
Type species: Lepidopterella palustris Shearer & J.L. Crane
Notes: Lepidopterella is characterised by solitary, superficial to slightly immersed ascocarps, pseudoparenchymatic peridium, globose to subglobose asci, and papilionaceous, z-celled, brown ascospores. Shearer and Crane (1980) placed Lepidopterella in Argynnaceae. In the phylogenetic analyses of Shearer et al. (2009), L. palustris represents a basal taxon to Mytilinidiales. Lepidopterella resembles Argynna in having butterfly-shaped ascospores but can be differentiated in having globose to subglobose ascomata, and papilionaceous to broadly reniform, brown to orange-brown ascospores (Hyde et al. 2013). Lepidopterella is morphologically and phylogenetically a distinct genus in Argynnaceae. Molecular markers available for Lepidopterella are ITS, LSU and SSU.
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