Fungalpedia – Note 2867, Minimidochium
Minimidochium. B. Sutton.
Citation when using this data: Wenping Wu et al. 2022 – Fungalpedia.
Index Fungorum, Facesoffungi, MycoBank, GenBank
Classification: Incertae sedis, Incertae sedis, Incertae sedis, Incertae sedis, Pezizomycotina, Ascomycota, Fungi
Colonies effuse, brown, sparse. Mycelium immersed composed of pale brown, branched, smooth, septate hyphae. Teleomorph: Unknown. Anamorph: Conidiomata sporodochia, scattered, punctiform, pulvinate, dark brown to black, setose. Setae sterile, arising from the lower cells of the stroma, subulate, acutely pointed, mid to dark brown, smooth, simple, erect, straight. Conidiophores macronematous, formed a close palisade over the surface of the stroma, straight or flexuous, hyaline to pale brown, smooth, septate. Conidiogenous cells integrated and terminal or discrete, monophialidic, cylindrical, clavate, lageniform, with a very small apical collarette. Conidia holoblastic, solitary, hyaline, aseptate or septate, curved, cylindrical, subcylindrical, fusiform, falcate, furnished with setulae appendages at each end (Adapted from Sutton 1970).
Ecology/Substrate/Host: Saprobe on dead material of plant.
Geographical distribution: China.
Description and illustration: Sutton (1969); Seifert et al. (2011).
Notes: The genus Minimidochium was introduced by Sutton (1969) for a sporodochial hyphomycetes with falcate and appendaged conidia, M. setosum. Subsequently six species have been added into the genus so far, they are Minimidochium crepuscolarae, M. eucalypti, M. indicum Varghese & V.G. Rao, M. indicum Vittal & Doral (illegitimate), M. microsporum, M. nipponicum and M. parvum (Sutton 1969; Varghese and Rao 1978; Vittal and Dorai 1993; Matsushima 1995, 1996); Cabello et al. 1998; Pasqualetti et al. 2005; Zhao and Zhao 2012). No DNA sequence has been available for molecular phylogenic study, especially from the type species. Here we generated the ITS and LSU sequences from a new species, and assign the genus to Chaetosphaeriaceae. However, its taxonomic position might change according to the molecular phylogeny study with involvement of type species in future.
The genus was known from China with only one species, M. monoseptatum. Here we added another two species from China.
Type species: Minimidochium setosum B. Sutton.
Other accepted species: Species Fungorum – search Minimidochium.
References
Matsushima T 1995 – Matsushima mycological memoirs 8. Author, Kobe
Matsushima T 1996, publ. 1997 – Matsushima mycological memoirs 9. Matsushima Fungus Collection, Kobe
Pasqualetti M, Rambelli A, Tempesta S 2005 – Identification key and description of Mediterranean maquis litter microfungi. Bocconea 18:5–176.
Varghese KIM, Rao VG 1978 – Two new setose hyphomycetes from India. Bot Notiser 131:215–217.
Vittal BPR, Dorai M 1993 – Minimidochium indicum, a nomenclatural correction. Mycotaxon 46:285.
Entry by
Wenping Wu, R&D Center, Novozymes China, No. 14 Xin Xi Lu, Shangdi Zone, Haidian District, Beijing 100085, P.R. China
Published online 03 September 2026