Myriostigma

Myriostigma
Scientific classification
Kingdom:	Fungi
Division:	Ascomycota
Class:	Arthoniomycetes
Order:	Arthoniales
Family:	Arthoniaceae
Genus:	Myriostigma; Kremp. (1874)
Type species
	Myriostigma candidum; Kremp. (1874)

Myriostigma is a genus of lichens in the family Arthoniaceae. The genus was circumscribed by German lichenologist August von Krempelhuber in 1874.

Characteristics of Myriostigma include the raised maculate (spots), ascomata-like fertile areas, asci that are 8-spored, thick-walled, globular and stalked, and ascospores that are hyaline, bean-shaped, and muriform (divided into chambers by septa).

Species

As of July 2024^[update], Species Fungorum (in the Catalogue of Life) accepts nine species of Myriostigma.

Myriostigma candidum Kremp. (1874)
Myriostigma filicinum (Ellis & Everh.) Frisch & G.Thor (2014)
Myriostigma irregulare (Lücking, Aptroot, Kalb & Elix) Frisch & G.Thor (2014)
Myriostigma miniatum (Vain. ex Lücking) Aptroot, Ertz, Grube & M.Cáceres (2015)
Myriostigma minisorediatum Aptroot, L.A.Santos & M.Cáceres (2024) – Brazil
Myriostigma napoense (Kalb & Jonitz) Kukwa (2015)
Myriostigma nicobaricum Jagadeesh & G.P.Sinha (2016) – India
Myriostigma subcandidum (M.Cáceres & Lücking) Frisch & G.Thor (2014)
Myriostigma xanthominiatum Aptroot & M.F.Souza (2021) – Brazil
Myriostigma xanthonicum Aptroot & M.Cáceres (2018) – Brazil

The species once known as Myriostigma guatteriae G.Arnaud (1925) is now Myriostigmella guatteriae.

References

↑ Wijayawardene, Nalin; Hyde, Kevin; Al-Ani, Laith Khalil Tawfeeq; Somayeh, Dolatabadi; Stadler, Marc; Haelewaters, Danny; et al. (2020). "Outline of Fungi and fungus-like taxa". Mycosphere. 11: 1060–1456. doi:10.5943/mycosphere/11/1/8. hdl:10481/61998.
1 2 Krempelhuber, A. (1874). Lichenes foliicolae quos legit O. Beccari annis 1866–1867 in insula Borneo [Leaf-dwelling lichens collected by O. Beccari in the years 1866–1867 on the island of Borneo] (in Latin). München: privately published.
↑ Frisch, Andreas; Thor, Göran; Ertz, Damien; Grube, Martin (2014). "The Arthonialean challenge: Restructuring Arthoniaceae". Taxon. 63 (4): 727–744. doi:10.12705/634.20.
↑ "Myriostigma". Catalogue of Life. Species 2000: Leiden, the Netherlands. Retrieved 17 July 2024.
↑ Aptroot, André; Cáceres, Marcela Eugenia da Silva; Santos, Lidiane Alves dos (2024). "The taxonomy of sterile Arthoniaceae from Brazil: white crusts on overhanging tropical trees can be named". The Lichenologist. 56 (1): 1–13. doi:10.1017/S0024282924000021.
↑ Ram, T.A.M. Jagadeesh; Sinha, G.P. (2016). "A world key to Cryptothecia and Myriostigma (Arthoniaceae), with new species and new records from the Andaman and Nicobar Islands, India". Phytotaxa. 266 (2): 103–114. doi:10.11646/phytotaxa.266.2.4.
↑ Aptroot, André; Souza, Maria Fernanda (2021). "New crustose lichens from a tropical coastal area in Paraná (Brazil)". Cryptogamie, Mycologie. 42 (12). Museum National d'Histoire Naturelle, Paris, France: 191–197. doi:10.5252/cryptogamie-mycologie2021v42a12.
↑ Aptroot, A.; Cáceres, M.E.S. (2018). "New species and new records of lichens from inselbergs and surrounding Atlantic rain forest in the Chapada Diamantina (Bahia, Brazil)". Herzogia. 31: 359–373. doi:10.13158/heia.31.1.2018.359.

[Wijayawardene_et_al._2020-1] Wijayawardene, Nalin; Hyde, Kevin; Al-Ani, Laith Khalil Tawfeeq; Somayeh, Dolatabadi; Stadler, Marc; Haelewaters, Danny; et al. (2020). "Outline of Fungi and fungus-like taxa". Mycosphere. 11: 1060–1456. doi:10.5943/mycosphere/11/1/8. hdl:10481/61998.

[Krempelhuber_1874-2] 1 2 Krempelhuber, A. (1874). Lichenes foliicolae quos legit O. Beccari annis 1866–1867 in insula Borneo [Leaf-dwelling lichens collected by O. Beccari in the years 1866–1867 on the island of Borneo] (in Latin). München: privately published.

[Frisch_et_al._2014-3] Frisch, Andreas; Thor, Göran; Ertz, Damien; Grube, Martin (2014). "The Arthonialean challenge: Restructuring Arthoniaceae". Taxon. 63 (4): 727–744. doi:10.12705/634.20.

[CoL-4] "Myriostigma". Catalogue of Life. Species 2000: Leiden, the Netherlands. Retrieved 17 July 2024.

[Aptroot_et_al._2024-5] Aptroot, André; Cáceres, Marcela Eugenia da Silva; Santos, Lidiane Alves dos (2024). "The taxonomy of sterile Arthoniaceae from Brazil: white crusts on overhanging tropical trees can be named". The Lichenologist. 56 (1): 1–13. doi:10.1017/S0024282924000021.

[Ram_&_Sinha_2016-6] Ram, T.A.M. Jagadeesh; Sinha, G.P. (2016). "A world key to Cryptothecia and Myriostigma (Arthoniaceae), with new species and new records from the Andaman and Nicobar Islands, India". Phytotaxa. 266 (2): 103–114. doi:10.11646/phytotaxa.266.2.4.

[Aptroot_&_Souza_2021-7] Aptroot, André; Souza, Maria Fernanda (2021). "New crustose lichens from a tropical coastal area in Paraná (Brazil)". Cryptogamie, Mycologie. 42 (12). Museum National d'Histoire Naturelle, Paris, France: 191–197. doi:10.5252/cryptogamie-mycologie2021v42a12.

[Aptroot_&_Cáceres_2018-8] Aptroot, A.; Cáceres, M.E.S. (2018). "New species and new records of lichens from inselbergs and surrounding Atlantic rain forest in the Chapada Diamantina (Bahia, Brazil)". Herzogia. 31: 359–373. doi:10.13158/heia.31.1.2018.359.