Juncaceicola
Juncaceicola Tennakoon, Camporesi, Phook. & K.D. Hyde, in Tennakoon et al., Cryptog. Mycol. 37(2): 138 (2016).
Index Fungorum number: IF 552126; Facesoffungi number: FoF 021450, 7 morphological species (Species Fungorum 2022), 7 species with molecular data.
Saprobic on dead grasses and woody twigs. Sexual morph: Ascomata solitary, scattered to clustered, immersed or erumpent through the host surface, visible as raised, black spots, on the host surface, globose to sub globose, uniloculate, glabrous, with or without papilla. Peridium composed of several layers of yellowish brown to dark brown, pseudoparenchymatous cells, arranged in a textura angularis to textura prismatica. Hamathecium composed of dense, broad, filamentous, distinctly septate, cellular pseudoparaphyses, not constricted at the septa, anastomosing at the apex, embedded in a hyaline gelatinous matrix. Asci 8-spored, bitunicate, fissitunicate, broadly cylindrical to cylindric-clavate, short pedicellate, apically rounded, with a well-developed ocular chamber. Ascospores overlapping bi-seriate, ellipsoidal to fusiform with rounded ends, initially hyaline becoming pale yellowish to yellowish brown, 3-4-septate, second cell from apex wider than other cells, slightly constricted at the septum, straight to curved, smooth to rough-walled, guttulate, with or without a mucilaginous sheath. Asexual morph: reported as coelomycetous, stagonospora-like (adapted from Leuchtmann 1984).
Type species: Juncaceicola luzulae Tennakoon, Camporesi, Phookamsak & K.D. Hyde
Notes: Juncaceicola is unique in having broad fusiform to ellipsoidal ascospores, enlarged at the second cell from the apex. Juncaceicola is a well-supported distinct genus in Phaeosphaeriaceae. Molecular markers available for Juncaceicola are ITS, LSU, SSU, and TEF-1.
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