Alloleptosphaeria
Alloleptosphaeria Ariyaw., Wanas. & K.D. Hyde, in Ariyawansa et al., Fungal Diversity: 10.1007/s13225-015-0349-2, [11] (2015).
Index Fungorum number: IF 551460; Faceoffungi number: FoF 01152, 3 morphological species (Species Fungorum 2020), 3 species with molecular data
Saprobic on dead herbaceous branches in terrestrial habitats. Sexual morph: Ascomata solitary, scattered, immersed to semi-erumpent, globose or subglobose, dark brown to black, coriaceous, fused to the host tissue, ostiolate. Ostiole papillate, black, smooth, ostiolar canal filled with sparse periphyses, upper covering of ostiole comprising short, light brown setae-like structures. Peridium thin-walled, composed of a few layers of thin-walled, brown to dark brown, or reddish brown, pseudoparanchymatous cells, forming a textura angularis. Hamathecium comprising 1.5–2.5 μm wide, filamentous, branched septate, cellular pseudoparaphyses. Asci 8-spored, bitunicate, fissitunicate, cylindric-clavate to clavate, pedicellate, rounded and thick-walled at the apex, with an ocular chamber. Ascospores overlapping 1–2-seriate, initially hyaline, becoming yellowish brown at maturity, fusiform to clavate, 3- septate, constricted at the septa, cell above central septum widest, narrowly rounded at both ends, smooth-walled, lacking a mucilaginous sheath. Asexual morph: Unknown (adapted from Ariyawansa et al. 2015).
Type species: Alloleptosphaeria italica Wanas., Camporesi, Ariyaw. & K.D. Hyde
Notes: Alloleptosphaeria is unique in having immersed ascomata, a thin-walled peridium, composed of a few layers of thin-walled, brown to dark brown or reddish brown, pseudoparenchymatous cells. Molecular markers available for Alloleptosphaeria include LSU, SSU and ITS.
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