Mariannaea

Mariannaea is a genus of fungi belonging to the family Nectriaceae.^[1]

Mariannaea
Mariannaea elegans in phase contrast microscopy
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Ascomycota
Class:	Sordariomycetes
Order:	Hypocreales
Family:	Nectriaceae
Genus:	Mariannaea G.Arnaud ex Samson
Type species
Mariannaea elegans (Corda) Samson (1974)

The genus has cosmopolitan distribution.^[1]

The fungal genus was formally established by Samson (1974) to accommodate M. camptospora, M. elegans and the variety M. elegans var. punicea and was typified by M. elegans.^[2] The genus is characterized by branched, septate conidiophores with hyaline, flask-shaped phialides, 1–2-celled hyaline conidia mostly forming imbricate chains or slimy heads (Samson 1974;^[2] Samson and Bigg 1988;^[3] Samuels and Seifert 1991).^[4] The sexual morph of Mariannaea has been linked to genus Nectria (Samuels and Seifert 1991),^[4] and genus Cosmospora (Gräfenhan et al. 2011).^[5] However, Cosmospora and Nectria have been shown polyphyletic within the Nectriaceae family, while genus Mariannaea formed a monophyletic clade within Nectriaceae. Therefore, Gräfenhan et al. (2011) retained Mariannaea as a distinct genus in Nectriaceae.^[5] Five new species were further introduced in the genus (Crous et al. 2019;^[6] Hyde et al. 2020b;^[7] Boonmee et al. 2021;^[8] Watanabe and Hirose 2021;^[9] Yang et al. 2021).^[10] /

Species

As accepted by Species Fungorum;^[11]

• Mariannaea aquaticola Kurniawati, L. Cai & K.D. Hyde (2010)
• Mariannaea atlantica A.L. Alves, A.C.S. Santos & P.V. Tiago (2020)
• Mariannaea camelliae Suwannar. & J. Kumla (2021)
• Mariannaea camptospora Samson (1974)
• Mariannaea chlamydospora D.M. Hu & L. Cai (2016)
• Mariannaea cinerea D.M. Hu & L. Cai (2016)
• Mariannaea clavispora Samson & Bigg (1988)
• Mariannaea dimorpha Z.Q. Zeng & W.Y. Zhuang (2014)
• Mariannaea elegans (Corda) Samson (1974)
• Mariannaea fusiformis D.M. Hu & L. Cai (2016)
• Mariannaea humicola L. Lombard & Crous (2015)
• Mariannaea imbricata D. Hirose & Kohei Watan. (2021)
• Mariannaea lignicola D.M. Hu & L. Cai (2016)
• Mariannaea macrochlamydospora Nonaka, Kaneta & Masuma (2015)
• Mariannaea nipponica Matsush. (1995)
• Mariannaea pinicola L. Lombard & Crous (2015)
• Mariannaea punicea (Samson) D.M. Hu & L. Cai (2016)
• Mariannaea samuelsii Seifert & Bissett (2011)
• Mariannaea submersa H. Yang & H. Zhang (2021)^[10]
• Mariannaea superimposita (Matsush.) Samuels (1989)
• Mariannaea terricola A.L. Alves, A.C.S. Santos, R.N. Barbosa, Souza-Motta & P.V. Tiago (2019)

Former species:^[11]

• M. catenulatae (Samuels) L. Lombard & Crous (2015) = Chaetopsina catenulata
• M. elegans var. punicea Samson (1974) = Mariannaea punicea
• M. pruinosa Z.Q. Liang (1991) = Cordyceps pruinosa, Cordycipitaceae

References

1. "Mariannaea G.Arnaud ex Samson". www.gbif.org. Retrieved 29 April 2021.
2. Samson, R.A. (1974). "Paecilomyces and some allied Hyphomycetes". Stud. Mycol. 6: 1–119.
3. Samson, R.A.; Bigg, W.L. (1988). "A new species of Mariannaea from California". Mycologia. 80: 131–134. doi:10.1080/00275514.1988.12025512.
4. Samuels, G.J.; Seifert, K.A. (1991). "Two new species of Nectria with Stilbella andMariannaea anamorphs". Sydowia. 43: 249–263.
5. Gräfenhan, T.; Schroers, H.J.; Nirenberg, H.I.; Seifert, K.A. (2011). "An overview of the taxonomy, phylogeny, and typification of nectriaceous fungi in Cosmospora, Acremonium, Fusarium, Stilbella, and Volutella". Stud. Mycol. 68: 79–113. doi:10.3114/sim.2011.68.04. PMC 3065986. PMID 21523190.
6. Crous, P.W.; Carnegie, A.J.; Wingfield, M.J.; Sharma, R.; Mughini, G.; Noordeloos, M.E.; et al. (2019). "Fungal Planet description sheets: 868–950". Persoonia – Molecular Phylogeny and Evolution of Fungi. 42 (1): 291–473. doi:10.3767/persoonia.2019.42.11. PMC 6712538. PMID 31551622.
7. Hyde KD, et al. (2020). "Fungal diversity notes 1151–1276: taxonomic and phylogenetic contributions on genera and species of fungal taxa". Fungal Diversity. 100: 5–277. doi:10.1007/s13225-020-00439-5. hdl:2437/291202.
8. Boonmee S, Wanasinghe DN, Calabon MS, Huanraluek N, Chandrasiri SK, et al. (2021). "Fungal diversity notes 1387–1511: taxonomic and phylogenetic contributions on genera and species of fungal taxa". Fungal Diversity. 111 (1): 1–335. doi:10.1007/s13225-021-00489-3. PMC 8648402. PMID 34899100.
9. Watanabe, K.; Hirose, D. (2021). "A novel Mariannaea species isolated from decayed pine needles in Japan". Phytotaxa. 522 (3): 211–220. doi:10.11646/phytotaxa.522.3.4. S2CID 241635609.
10. Yang, H.; Wang, G.N.; Zhang, H. (2021). "Mariannaea submersa sp. nov., with a new habitat and geographic record of Mariannaea catenulata". Mycosystema. 40 (6): 1286–1298.
11. "Species Fungorum – Search Page – Mariannaea". www.speciesfungorum.org. Retrieved 20 July 2023.