Fungalpedia – Note 547, Marchantiana

 

Marchantiana S.Y. Kondr., Kärnefelt, Elix, A. Thell & Hur

Citation when using this data: Tibpromma et al. 2024 (in prep.) – Fungalpedia, Ascomycota.

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

Classification: Teloschistaceae, Teloschistales, Lecanoromycetidae, Lecanoromycetes, Pezizomycotina, Ascomycota, Fungi.

Kondratyuk et al. (2014) proposed Marchantiana (Teloschistaceae, Teloschistales, Lecanoromycetes) based on molecular, morphological and anatomical characters, with the type species Marchantiana occidentalis. The type species was initially identified as Caloplaca occidentalis by Kondratyuk et al. (2009). Marchantiana is treated as a monophyletic genus according to recent studies by using a combined data set (Wilk et al. 2021, Søchting et al. 2023) and is characterized by crustose thallus, exhibiting a continuous to areolate growth pattern, displays a range of colors from pale grey to dark brownish grey, dark greenish grey, or dull to bright yellow to orange. The cortical layer is para plectenchymatous, often notably thin. Apothecia may manifest as biatorine, zeorine, or lecanorine, with a subhymenium and hymenium devoid of oil droplets. The true exciple exhibited pseudoprosoplectenchymatous characteristics. The 8-spored asci and ascospores are 2-, 3-, and 4-locular. Conidia are bacilliform to narrowly bacilliform. The constituents include anthraquinones of parietin, fragilin, or neochloroemodin chemosyndromes. Secondary substances are often concentrated in fruiting bodies. However, some Marchantiana species have been transferred to Streimanniella and Villophora (Kondratyuk et al. 2015, Søchting et al. 2021).

Type species: Marchantiana occidentalis (Elix, S.Y. Kondr. & Kärnefelt) S.Y. Kondr., Kärnefelt, A. Thell, Elix, J. Kim, A.S. Kondr. & Hur 

Other accepted species: Species Fungorum – search Marchantiana

 

Figure 1 – Habit of Marchantiana maulensis. Scale bar = 250 μm. Redrawn from Kondratyuk et al. (2014).

 

References

Kondratyuk SY, Jeong MH, Yu NN, Kärnefelt A et al. 2014 – A revised taxonomy for the subfamily Caloplacoideae (Teloschistaceae, Ascomycota) based on molecular phylogeny. Acta botanica Hungarica 56, 93–123. 

Kondratyuk SY, Kärnefelt I, Elix JA, Thell A. 2009 – Contributions to the Teloschistaceae, with particular reference to the Southern Hemisphere. Bibliotheca Lichenologica 100, 207–282.

Kondratyuk SY, Kärnefelt I, Thell A, Elix JA et al. 2015 – Brownlielloideae, a new subfamily in the Teloschistaceae (Lecanoromycetes, Ascomycota). Acta Botanica Hungarica 57, 321–343.

Søchting U, Sancho LG, Arup U. 2023 – Marchantiana pyramus, M. ramulicola and Austroplaca thisbe (Teloschistaceae, lichenized Ascomycota) – three new twig lichens from southern Patagonia. Lichenologist 55, 377–387. 

Søchting U, Søgaard MZ, Sancho LG, Arup U. 2021 – The lichen genus Villophora (Teloschistaceae, Ascomycota). The Lichenologist 53, 245–255.

Wilk K, Pabijan M, Saługa M, Gaya E et al. 2021 – Phylogenetic revision of South American Teloschistaceae (lichenized Ascomycota, Teloschistales) reveals three new genera and species. Mycologia 113, 278–299.

 

Entry by

Lu W, Excellence Center of Microbial Diversity and Sustainable Utilization, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan 655011, China

 

(Edited by Saowaluck Tibpromma, Samaneh Chaharmiri-Dokhaharani, & Achala R. Rathnayaka)

 

Published online 13 December 2024

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