Capnodiales » Extremaceae » Extremus

Extremus adstrictus

Extremus adstrictus Quaedvl. & Crous, in Crous et al., Fungal Systematics and Evolution 3: 127 (2019).

            Index Fungorum number: IF 829396; Facesoffungi number: FoF 06649,    Fig. 1

Description: see Quaedvlieg et al. (2014); Crous et al. (2019).

Material considered: see Quaedvlieg et al. (2014); Crous et al. (2019).

Fig. 1 Extremus adstrictus (CBS 118292 = TRN96, re-drawn from Devriesia adstricta from Fig. 10 a–d in Egidi et al. 2014). a–c Catenate conidia with a dark median septum.

 

Importance and distribution

Extremus comprises two species. Extremus adstrictus has been isolated from rock in Europe (Baleares islands) and E. antarcticus from rock in Antarctica. Extremus species form compact, melanized colonies and are able to survive stress conditions of bare rocks and cause decomposition and exfoliation of rock surfaces (Egidi et al. 2014; Owczarek-Kościelniak 2020).

 

References

Crous PW, Schumacher RK, Akulov A, Thangavel R et al. 2019 – New and Interesting Fungi. 2. Fungal Systematics and Evolution 3, 57–134.

Egidi E, Hoog GS de, Isola D, Onofri S et al. 2014 – Phylogeny and taxonomy of meristematic rock-inhabiting black fungi in the Dothideomycetes based on multi-locus phylogenies. Fungal Diversity 65, 127–165.

Owczarek-Kościelniak M 2020 – Extremus adstrictus from a dolomite wall in Poland: the first report outside Mallorca. Plant and Fungal Systematics 65, 624–630.

Quaedvlieg W, Binder M, Groenewald JZ, Summerell BA et al. 2014 – Introducing the consolidated species concept to resolve species in the Teratosphaeriaceae. Persoonia 33, 1– 40.

 

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