Fungalpedia – Note 2382, Catenuliconidia
Catenuliconidia. N.G. Liu & K.D. Hyde.
Citation when using this data: Yuan HS et al. 2020 – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1
Classification: Catenuliconidiaceae, Xylariales, Xylariomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Etymology: “Catenu-” in reference to catenulate conidia.
Saprobic on decaying wood in terrestrial habitat. Sexual morph: Undetermined. Asexual morph: Hyphomycetous. Colonies on natural substrate effuse, black, velvety. Mycelium mostly immersed, composed of septate, branched, hyaline hyphae. Conidiophores macronematous, mononematous, in groups, erect, straight or broadly curved, brown to dark brown, septate, unbranched, smooth, thick-walled. Conidiogenous cells blastic, terminal, integrated, cylindrical, brown. Conidia catenate, developing in acropetal chains, ellipsoid to cylindrical, septate, septum darkened, constricted at the septum, truncate at both ends, subhyaline to olive green when immature, brown to dark brown when mature.
Notes: In the phylogenetic analysis, Catenuliconidia uniseptata formed a distinct subclade and was basal to the Barrmaeliaceae clade without significant support. Barrmaeliaceae comprises two genera, Barrmaelia Rappaz and Entosordaria (Sacc.) Höhn. (Voglmayr et al. 2018). Barrmaelia has a Libertella-like asexual morph which is only known from pure cultures (Voglmayr et al. 2018), while the asexual morph of Entosordaria is unknown. Based on morphology and phylogeny, we treat Catenuliconidia as a distinct new genus in Xylariales incertae sedis.
Type species: Catenuliconidia uniseptata N.G. Liu & K.D. Hyde
Other accepted species: Species Fungorum – search Catenuliconidia.
Figure 1 – Catenuliconidia uniseptata (MFLU19–0689, holotype). a, b Colonies on wood. c. Sporodochium d Conidiophore and conidium. e–f Conidial chains. g–k Conidia. l Germinating conidium. m, n Colonies on PDA medium. Scale bars: c = 30 µm, d–f = 20 µm, g–k = 5 µm, l = 10 µm
References
Entry by
Hai-Sheng Yuan, CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110164, People’s Republic of China, University of the Chinese Academy of Sciences, Beijing, 100049, People’s Republic of China
Published online 30 April 2026