Fungalpedia – Note 2850, Fusichloridium
Fusichloridium. W.P. Wu & Y.Z. Diao.
Citation when using this data: Wenping W et al. 2022 – Fungalpedia.
Index Fungorum, Facesoffungi, MycoBank, GenBank
Classification: Chaetosphaeriaceae, Chaetosphaeriales, Sordariomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Etymology: Refers to its fusiform-shaped conidia.
Diagnosis: Similar to Chloridium but differs in producing both long setiform and short conidiophores, and fusiform-shaped conidia which are slightly constricted in the middle. Phylogenetically they are also different.
Colonies effuse, brown. Teleomorph: Ascomata perthecia, black, smooth-walled, shining, subglobose, ostiole conical, covered with conidiophores, without a basal stroma, walls consisting of numerous layers of thick-walled, pigmented cells. Paraphyses threadlike, soon evanescente. Asci cylinderical to somewhat fusiform, thin-walled, with a thin apical plate, with spores in 3–4 rows. Ascospores fusiform with a somewhat rounded upper end, mostly 3-septate, each cell 1–2 guttulate. Anamorph: Conidiophores forming two layers: the lower short conidiophores pale brown, cylindrical, 0–1-septate, sympodially or sometime percurrently proliferating, monophialidic or polyphialidic, with funnel-shaped collarettes, and produce abundant whitish to yellowish sporulation; the upper with darker, thick-walled setiform conidiophores, septate, tapering towards the apex, terminating in a monophialidic conidiogenous cells with almost hyaline collarettes. Conidia in dry, star-like heads, cylindrical with tapering and rounded or truncate ends, centrally sometime slightly constricted, hyaline, aseptate, smooth-walled (Adapted from Réblová and Gams 1999).
Notes: Fusichloridium is created to accommodate the unique fungus Chaetosphaeria fusiformis, which is known with both anamorph and teleomorph. They are phylogenetically distinct from Chaetosphaeria innumera, the type species of Chaetosphaeria. Morphologically they are also different from C. innumera in both teleomorph and anamorph. In C. fusiformis, the ascospores are fusiform to filiform; the conidiophores are two layers, and the conidia are produced in dry mass, cylindrical with tapering and rounded or truncate ends, centrally sometime
slightly constricted. While in C. innumera, the ascospores are fusiform; the conidiophores are one layer, and the conidia are in slimy head or simple chains, elongate-ellipsoidal to cylindrical (Gams and Holubová-Jechová, 1976).
Type species: Fusichloridium fusiforme (W. Gams & Hol.-Jech.) W.P. Wu & Y.Z. Diao, Fungal Diversity 116: 282 (2022).
Other accepted species: Species Fungorum – search Fusichloridium.
References
Entry by
Wenping Wu, R&D Center, Novozymes China, No. 14 Xin Xi Lu, Shangdi Zone, Haidian District, Beijing 100085, People’s Republic of China
Published online 3 August 2026