Fungalpedia – Note 988, Xenoroussoella

 

Xenoroussoella Mapook & K.D. Hyde 

Citation when using this data: de Silva NI et al. 2022 (in prep.) – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1

Classification: Roussoellaceae, Pleosporales, Pleosporomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi

Mapook et al. (2020) introduced Xenoroussoella to accommodate X. triseptata which was collected from Chromolaena odorata in Thailand. Xenoroussoella members are characterized by immersed, solitary, globose to subglobose ascomata, with protruding ostiolar neck, cylindricclavate to clavate asci, and brown to dark brown, ellipsoid to obovoid, 3-septate ascospores (Mapook et al. 2020).

Type species: Xenoroussoella triseptata Mapook & K.D. Hyde, Fungal Divers 101: 94 (2020).

Other accepted species: Species Fungorum – search Xenoroussoella.

 

image

 

Figure 1 – Xenoroussoella triseptata (MFLU 21-0251). a–c Appearance of conidiomata on substrate. d, e Vertical sections through conidiomata. f Conidiomatal wall. g, h Conidiogenous

cells. i, j Conidia. Scale bars: b = 500 μm, c = 200 μm, d, e = 20 μm, f = 10 μm, g, h = 5 μm, i, j = 2 μm.

 

References

Mapook A, Hyde KD, McKenzie EHC, Jones EBG et al. 2020 – Taxonomic and phylogenetic contributions to fungi associated with the invasive weed Chromolaena odorata (Siam weed). Fungal Diversity 101, 1–175.

 

Entry by

Nimali Indeewari de Silva, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand, Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.

 

Published online 18 November 2022

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