Fungalpedia – Note 490, Xenophaeosphaeria
Xenophaeosphaeria Crous & M.J. Wingf.
Citation when using this data: Tibpromma et al. 2024 (in prep.) – Fungalpedia, Ascomata.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1
Classification: Phaeosphaeriaceae, Pleosporales, Pleosporomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi.
Xenophaeosphaeria was introduced to accommodate the type Xenophaeosphaeria grewiae that grows on twigs of Grewia sp. (Malvaceae) in Tanzania (Crous et al. 2014). The genus was placed within Phaeosphaeriaceae (Pleosporales) and showed similar morphology to Neomassariosphaeria and Neophaeosphaeria but differed in the development of ascospore septation. The genus has been reported in its sexual morph and is characterized by solitary to gregarious, immersed, globose ascomata, hyphal-like, anastomosing pseudoparaphyses, clavate to fusoid ellipsoid, fasciculate asci with short-stipitate apical chamber, brown, guttulate, fusoid-ellipsoid, septate ascospores (Crous et al. 2014).
Type species: Xenophaeosphaeria grewiae Crous & M.J. Wingf.
Other accepted species: This genus is monotypic.
Figure 1 – Xenophaeosphaeria grewiae. a-c Asci. d, e Ascospores. Scale bars: a-e = 10 μm. Redrawn from Crous et al. (2014).
Reference
Entry by
Thiyagaraja V, CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, P.R. China.
(Edited by Saowaluck Tibpromma, Samaneh Chaharmiri-Dokhaharani, & Achala R. Rathnayaka)
Published online 3 December 2024