Biology:Aspidothelium

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Short description: Genus of lichens

Aspidothelium
Scientific classification e
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Thelenellales
Family: Thelenellaceae
Genus: Aspidothelium
Vain. (1890)
Type species
Aspidothelium cinerascens
Vain. (1890)

Aspidothelium is a genus of lichen-forming fungi in the family Thelenellaceae.[1] All species in the genus have a tropical distribution and are crustose with a [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] photobiont partner. Most Aspidothelium species are foliicolous (leaf-dwelling), although some corticolous (bark-dwelling) species are known, as well as a single saxicolous (rock-dwelling) member.[2]

Taxonomy

The genus was circumscribed by Finnish lichenologist Edvard August Vainio in 1890.[3] Historically, it has at times been considered as a synonym of genus Thelenella. Families in which the genus has previously been classified are the Verrucariaceae, Strigulaceae, and the Aspidotheliaceae, a monogeneric family circumscribed especially to contain this genus.[4] Modern molecular phylogenetic analysis has shown its placement in the family Thelenellaceae, allied with the order Ostropales.[2]

Description

Aspidothelium is known for its production of [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] that range in colour from whitish to pinkish or grey and are [[Glossary of lichen terms#{{biology:{1}}}|uncarbonized]]. These perithecia often exhibit wart-like, setae, or disc-like structures on their surface. Within the perithecia, dense and unbranched [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] and [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] can be found alongside clavate asci and colourless ascospores. These ascospores are typically [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] in shape, and [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] to transversely septate. Aspidothelium is particularly notable for its unique characteristic of producing fusiform ascospores with numerous transverse septa and short, broad cells.[2]

Species

  • Aspidothelium arachnoideum Lücking (2008) – Costa Rica
  • Aspidothelium cuyabense (Malme) P.M.McCarthy (1995)
  • Aspidothelium gemmiferum Sérus. & Lücking (2001)[5] – Papua New Guinea
  • Aspidothelium glabrum Lücking, Aptroot & Sipman (2008) – Costa Rica
  • Aspidothelium hirsutum Yeshitela, Eb.Fisch., Killmann & Sérus. (2009)[6] – Ethiopia
  • Aspidothelium lueckingii Flakus (2009)[7] – Bolivia
  • Aspidothelium macrosporum (Müll.Arg.) Lücking (2008)
  • Aspidothelium mirabile Lücking (1999)[8] – Ecuador
  • Aspidothelium ornatum Lücking (1999)[8] – Ecuador
  • Aspidothelium papillicarpum Lücking (2008) – Costa Rica
  • Aspidothelium scutellicarpum Lücking (1999)[8] – Ecuador
  • Aspidothelium silverstonei Soto-Medina, Aptroot & Lücking (2017)[9] – Colombia
  • Aspidothelium submuriforme Aptroot, L.I.Ferraro & M.Cáceres (2014)[10] – Argentina
  • Aspidothelium trichothelioides Sérus. & Vězda (1978) – Africa & tropical America
  • Aspidothelium verruculosum R.Sant. (1952) – tropical Asia & Australia

References

  1. Wijayawardene, N.N.; Hyde, K.D.; Dai, D.Q.; Sánchez-García, M.; Goto, B.T.; Saxena, R.K. et al. (2022). "Outline of Fungi and fungus-like taxa – 2021". Mycosphere 13 (1): 53–453. doi:10.5943/mycosphere/13/1/2. https://www.researchgate.net/publication/358798332. 
  2. 2.0 2.1 2.2 Nelsen, M.P.; Lücking, R.; Cáceres, M.E.S.; Aptroot, A.; Lumbsch, H.T. (2016). "Assessing the phylogenetic placement and redundancy of Aspidotheliaceae (Ascomycota), an orphaned family of lichen-forming fungi". Systematics and Biodiversity 15 (1): 63–73. doi:10.1080/14772000.2016.1203039. 
  3. Vainio, E.A. (1890). "Etude sur la classification naturelle et la morphologie des lichens du Bresil. Pars secunda" (in la). Acta Societatis Pro Fauna et Flora Fennica 7 (2): 1256. 
  4. David, J.C.; Hawksworth, D.L. (1991). "Validation of six family names of lichenized ascomycetes". Systema Ascomycetum 10: 1318. 
  5. Emmanuël, Sérusiaux; Lücking, Robert (2001). "Aspidothelium gemmiferum sp. nov., from Papua New Guinea (lichenized Ascomycetes)". Mycotaxon 79: 43–49. https://orbi.uliege.be/bitstream/2268/175264/1/2001%20Mycotaxon%20vol%20LXXIX.pdf. 
  6. Yeshitela, Kumelachew; Fischer, Eberhard; Killmann, Dorothee; Sérusiaux, Emmanuël (2009). "Aspidothelium hirsutum (Thelenellaceae) and Caprettia goderei (Monoblastiaceae), two new species of foliicolous lichens from Ethiopia and Kenya". The Bryologist 112 (4): 850–855. doi:10.1639/0007-2745-112.4.850. 
  7. Flakus, A. (2009). "Aspidothelium lueckingii: a new lichenized fungus from Bolivia". Nova Hedwigia 88 (1–2): 139–143. doi:10.1127/0029-5035/2009/0088-0139. https://www.researchgate.net/publication/233494741. 
  8. 8.0 8.1 8.2 Lücking, Robert (1999). "Foliicolous lichens and their lichenicolous fungi from Ecuador, with a comparison of lowland and montane rain forest". Willdenowia 29 (1–2): 299–335. doi:10.3372/wi.29.2924. 
  9. Medina, Edier Soto; Aptroot, André; Lücking, Robert (2017). "Aspidothelium silverstonei and Astrothelium fuscosporum, two new corticolous lichen species from Colombia". Cryptogamie, Mycologie 38 (2): 253–258. doi:10.7872/crym/v38.iss2.2017.253. 
  10. Aptroot, André; Ferraro, Lidia Itatí; Cáceres, Marcela Eugenia da Silva (2014). "New pyrenocarpous lichens from NE Argentina". The Lichenologist 46 (1): 95–102. doi:10.1017/s0024282913000716. 

Wikidata ☰ Q10420364 entry