Fungalpedia – Note 1183, Coniocessiaceae
Coniocessiaceae Asgari & Zare
Citation when using this data: Hyde KD et al. 2020 (in prep.) – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank.
Classification: Xylariales, Xylariomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Saprobic on grasses, soil and dung. Sexual morph: Ascomata less than 200 μm diam, superficial, subglobose to pyriform, glabrous or pilose, ostiolate, with hypha-like ostiole. Peridium membranaceous, thin, translucent or sometimes opaque, outer layer comprising pale-brown to dark brown with cells of textura intricata. Paraphyses abundant or few, septate, tapering, hyphae-like, thin-walled, filamentous, branched. Asci 4–spored, unitunicate, cylindrical to subcylindrical, pedicellate, with or without an apical ring. Ascospores uniseriate, dark brown to black, ellipsoidal, with narrowly rounded ends, smooth-walled, 1-celled, with or without germ-slit, if present full length, straight. Asexual morph: Hyphomycetous, nodulisporium-like: Conidiophores micronematous to macronematous, simple or branched, smooth-walled or verrucose, hyaline. Conidiogenous cells integrated, terminal, discrete, elongating sympodially, with persistent conspicuous denticles, hyaline. Conidia globose, subglobose to pyriform, smooth-walled or verruculose, with rounded apex, hyaline, attenuated and truncated base and distinct projection at the point of attachment to the conidiogenous cells (adapted from Maharachchimbura et al. 2016b).
Notes: Coniocessiaceae was established by Asgari & Zare (2011) to accommodate four species of Coniocessia (C. anandra, C. cruciformis, C. maxima, C. minima) with the species C. nodulisporioides. The family was placed in Xylariales based on morphology and molecular analyses, and a hyaline asexual morph with polyblastic conidiogenesis (nodulisporium-like). Phylogenetic analysis of Coniocessia species showed a distinct lineage close to Diatrypaceae, which confirmed it as a family in Xylariales (Asgari & Zare 2011, Maharachchikumbura et al. 2016b).
Type genus: Coniocessia Dania García, Stchigel, D. Hawksw. & Guarro.
References
Entry by
Kevin David Hyde, Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Haizhu District, Guangzhou 510225, P.R. China, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai 50150, Thailand, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand, Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, P.R. China, School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand, World Agroforestry Centre, East and Central Asia, Kunming 650201, Yunnan, P.R. China
Published online 28 February 2020l