Fungalpedia – Note 2326, Xenostigmina

 

Xenostigmina. Crous.

Citation when using this data: Hongsanan S et al. 2020 – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank

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

 

Notes – Xenostigmina causes brown spot disease in Acer macrophyllum (Funk 1986). It is characterized by sporodochial, conidiomata, verruculose, brown, 1–3-septate conidiophores, verruculose conidiogenous cells and broadly ellipsoidal to obclavate or subcylindrical, muriform, verruculose conidia (Funk 1986, Crous 1998, Tian et al. 2015, Hashimoto et al. 2017a). Crous (1998) revealed that Xenostigmina with its Mycopappus synanamorph is distinct from Stigmina sensu stricto, which has not been shown to reside in Pseudocercospora, but appears to be related to Seifertia (Seifert et al. 2007) in the Dothideomycetes (Crous et al. 2009a). Based on phylogenetic studies, Phookamsak et al. (2014c) and Tian et al. (2015) proposed to include Xenostigmina in Melanommataceae. Hashimoto et al. (2017a) proposed to include two species
X. zilleri and a new combination Xenostigmina aceris in Pseudodidymellaceae based on mycopappus-like propagules and phylogenetic analysis. The present multi-gene analysis indicated that Xenostigmina zilleri (CBS 115685) is related to Petrakia echinata (HB 090918.1) and formed a single clade in Melanommataceae. Thus, Xenostigmina is retained in Melanommataceae.

 

Type species: Xenostigmina zilleri (A. Funk) Crous, Mycol. Mem. 21: 155 (1998).

≡ Stigmina zilleri A. Funk, Can. J. Bot. 65(3): 482 (1987).

Other accepted species: Species Fungorum – search Xenostigmina.

 

References

Crous PW, Braun U, Wingfield MJ, Wood AR et al. 2009a – Phylogeny and taxonomy of obscure genera of microfungi. Persoonia 22, 139–161.

Crous PW. 1998 – Mycosphaerella spp. and their anamorphs associated with leaf spot diseases of Eucalyptus. Mycol Memories 21, 1–170.

Funk A. 1986 – Stigmina zilleri sp. nov., associated with brown leaf spot of broadleaf maple. Canadian Journal of Botany 65, 482–483.

Hashimoto A, Matsumura M, Hirayama K, Fujimoto R, Tanaka K. 2017a – Pseudodidymellaceae fam. nov.: phylogenetic affiliations of mycopappus-like genera in Dothideomycetes. Studies in Mycology 87, 187–206.

Hashimoto A, Matsumura M, Hirayama K, Fujimoto R, Tanaka K. 2017a – Pseudodidymellaceae fam. nov.: phylogenetic affiliations of mycopappus-like genera in Dothideomycetes. Studies in Mycology 87, 187–206.

Phookamsak R, Liu JK, McKenzie EH, Manamgoda DS et al. 2014c – Revision of Phaeosphaeriaceae. Fungal Diversity 68, 159–238.

Seifert KA, Hughes SJ, Boulay H, Louis-Seize G. 2007 – Taxonomy, nomenclature and phylogeny of three cladosporium-like hyphomycetes, Sorocybe resinae, Seifertia azaleae and the Hormoconis anamorph of Amorphotheca resinae. Studies in Mycology 58, 235–245.

Tian Q, Liu JK, Hyde KD, Wanasinghe DN, Boonmee S et al. 2015 – Phylogenetic relationships and morphological reappraisal of Melanommataceae (Pleosporales). Fungal Diversity 74, 267–324.

Tian Q, Liu JK, Hyde KD, Wanasinghe DN, Boonmee S et al. 2015 – Phylogenetic relationships and morphological reappraisal of Melanommataceae (Pleosporales). Fungal Diversity 74, 267–324.

 

Entry by

Sinang Hongsanan, Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Science and Oceanography, Shenzhen University, Shenzhen 518060, People’s Republic of China, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50002, Thailand

 

Published online 17 April 2026

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