Fungalpedia – Note 3172, Slimacomyces
Slimacomyces Minter, Bull. Brit. Mycol. Soc. 20 (1): 23 (1986).
Citation when using this data: Jian Ma et al. 2024 – Fungalpedia.
Index Fungorum, Faceoffungi, MycoBank, GenBank, Fig 1.
Classification: Tubeufiaceae, Tubeufiales, Incertae sedis, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi.
Notes: Slimacomyces was introduced and described by Minter (1986), with S. monosporus as the type species based on morphological data. Slimacomyces monosporus was initially identified as Helicoma monospora by Kendrick (1958), but it was later reclassified as T. monospora within Troposporella by Ellis (1976) based on conidial features. Slimacomyces is characterized by its light brown, erect, septate, unbranched conidiophores, and septate, terminal, lustrous black conidia consisting of heavy pigmentation in the cell walls, with the terminal and basal cell having lesser pigmentation (Kendrick 1958; Minter 1986). Slimacomyces comprises two species: S. isiolus and S. monosporus (Minter 1986; Zhao et al. 2007). These two species were found in decaying wood of an unidentified plant, and Pinus sylvestris in Papua New Guinea and Great Britain (Moore 1957; Kendrick 1958). Slimacomyces resembles Helicoma and Troposporella in producing septate and helicoid conidia. The asexual morph of Helicoma differs from Slimacomyces by producing rarely branched, denticles conidiophores, and acropleurogenous conidia that are widely truncate at the base, whereas Troposporella differs in producing helicoid conidia from the sporodochial conidiomata (Tsui and Berbee 2010; Lu et al. 2023a).
Type species: Slimacomyces monosporus (W.B. Kendr.) Minter, Bull. Brit. Mycol. Soc. 20 (1): 23 (1986).
Other accepted species: Species Fungorum – search Slimacomyces.
Figure 1 – (a) Ophiodendron laocooni (redrawn from Arnaud (1952)); (b) Rogergoosiella roystoneicola (redrawn from Seifert et al. (2011)); (c) Slimacomyces monosporus (redrawn from Seifert et al. (2011)); (d) Spiralum helicosporum (redrawn from Seifert et al. (2011)).
References
Ellis M. 1976 – More dematiaceous hyphomycetes. Commonwealth Mycological Institute, Kew.
Moore RT. 1957 – Index to the Helicosporae: addenda. Mycologia 49(4):580–587.
Zhao G, Liu X, Wu W. 2007 – Helicosporous hyphomycetes from China. Fungal Diversity 26:313–524.
Entry by
Jian Ma, School of Food and Pharmaceutical Engineering, Guizhou Institute of Technology, Guiyang 550003, P.R. China, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand.
Published online 18 September 2026