Fungalpedia – Note 277, Fuscosporella

 

Fuscosporella Jing Yang, Bhat & K.D. Hyde

Citation when using this entry: Perera et al. 2024 (in prep) – Fungalpedia, genera described in 2016. 

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1

Classification: Fuscosporellaceae, Fuscosporellales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi

Yang et al. (2016) introduced the hyphomycetous genus Fuscosporella, with F. pyriformis as the type, based on the LSU-SSU-rpb2 phylogeny. The genus is characterized by scattered black sporodochial colonies on natural substrates. The mycelium is partly immersed and partly superficial, composed of septate hyaline hyphae. Macronematous and mononematous conidiophores are hyaline or colourless, branched and smooth-walled. Conidiogenous cells are monoblastic, holoblastic, integrated, terminal, globose, subglobose, ellipsoidal, clavate, and hyaline. Conidia are acrogenous, obovate to obpyriform, with a septum near the base, brown to dark brown and smooth-walled. The basal cells are trapeziform, triangular, and pale brown (Yang et al. 2016). The sexual morph is undetermined. Fuscosporella species are saprobic on decaying woods in freshwater habitats (Yang et al. 2016, 2023; Du et al. 2022; Xu et al. 2022). The genus accommodates five species (Yang et al. 2016, 2023; Du et al. 2022; Xu et al. 2022). Fuscosporella resembles Parafuscosporella in sporodochial conidiomata and conidial morphology (Yang et al. 2023). However, Parafuscosporella species possess a jelly like cover of conidiomata, which is not present in Fuscosporella (Boonyuen et al. 2021; Yang et al. 2020, 2023). 

Type species: Fuscosporella pyriformis Jing Yang, Bhat & K.D. Hyde

Other accepted species: Species Fungorum – search Fuscosporella

Figure 1 – Fuscosporella pyriformis (MFLU 16-1979, holotype). a, b Conidia on substrate. c, d Conidiogenous cells with conidia. e–h Conidia and conidiogenous cells on PDA. Scale bars: a–e = 10 μm, f–h = 20 μm. Redrawn from Yang et al. (2016).

 

Reference

Boonyuen N, Chuaseeharonnachai C, Nuankaew S, Kwantong P et al. 2021 – Novelties in Fuscosporellaceae (Fuscosporellales): Two new Parafuscosporella from Thailand revealed by morphology and phylogenetic analyses. Diversity 13, 517.

Du HZ, Yang J, Liu NG, Cheewangkoon R et al. 2022 – Morpho-Phylogenetic Evidence Reveals new species of Fuscosporellaceae and Savoryellaceae from freshwater habitats in Guizhou Province, China. Journal of Fungi 8, 1–15.

Yang H, Dong W, Yu XD, Bhat DJ et al. 2020 – Four freshwater dematiaceous hyphomycetes in Sordariomycetes with two new species of Parafuscosporella. Phytotaxa 441, 19–34.

Yang J, Liu LL, Jones EG, Hyde KD et al. 2023 – Freshwater fungi from karst landscapes in China and Thailand. Fungal Diversity 119, 1–212.

Yang J, Maharachchikumbura SS, Bhat DJ, Hyde KD et al. 2016 – Fuscosporellales, a new order of aquatic and terrestrial Hypocreomycetidae (Sordariomycetes). Cryptogamie, Mycologie 37, 449–475.

Xu X, Wijayawardene NN, Long CS, Li XB et al. 2022 – A New Species (Fuscosporella xingyiensis sp. nov.) and a New Record (Sporoschisma chiangraiense) of wood-decay fungi from Guizhou, China. Chiang Mai Journal of Science 49, 718–729.

 

Entry by

Rekhani Hansika Perera, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand.

 

(Edited by Kevin D. Hyde, Samaneh Chaharmiri-Dokhaharani, & Achala R. Rathnayaka)

 

Published online 28 May 2024

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