Fungalpedia – Note 1531, Eriospora
Eriospora. Berk. & Broome.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1
Classification: Stictidaceae, Ostropales, Ostropomycetidae, Lecanoromycetes, Pezizomycotina, Ascomycota, Fungi
Saprobic on the host plant in terrestrial habitat. Sexual morph: undetermined. Asexual morph: Conidiomata dark brown to black, pycnidial, solitary, subepidermal, immersed, globose, unilocular, occasionally convoluted, glabrous, ostiolate. Ostiole single, circular, papillate, centrally located. Conidiomatal wall composed of hyaline cells of loose textura intricata in the base, appearing thicker-walled, pale to dark brown cells in the lateral and upper part. Conidiophores repeatedly branched to form an apparently reticulate layer lining the whole pycnidial wall, hyaline, irregular, septate, smooth-walled. Conidiogenous cells hyaline, holoblastic, polyblastic, sympodial, subcylindrical or irregular, integrated, indeterminate, smooth-walled, with several small conidiogenous loci towards the apices. Conidia hyaline, fliform, straight or curved, up to 8-septate, smooth-walled, euguttulate (Sutton 1980).
Notes: Eriospora was re-described by Petch (1943) and Sutton (1980). More than 20 epithets are listed in Index Fungorum (2019), but most of them have not been restudied. Wijayawardene et al. (2017b) accepted only the type species in the genus. Further studies with fresh collections and molecular data are needed to redefne this genus.
Type species: Eriospora leucostoma Berk. & Broome, Ann. Mag. nat. Hist., Ser. 2 5: 455 (1850).
Figure 1 – Eriospora leucostoma (redrawn from Sutton 1980) a Conidia. b,c Conidiophores, conidiogenous cells and developing conidia.
References
Li WJ, McKenZie EHC, Liu JK, Bhat DJ, Dai DQ, Caporesi E, Tian Q, Maharachcikumbura SSN, Luo ZL, Shang QJ, Zhang JF, Tangthirasunun N, Karunarathna SC, Xu JC, Hyde KD (2020) Taxonomy and phylogeny of hyaline-spored coelomycetes. Fungal Diversity 100: pages279–801.