Biology:Cladia

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Short description: Genus of lichen-forming fungi

Cladia
Cladia aggregata 856324.jpg
Cladia aggregata
Scientific classification e
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Lecanorales
Family: Cladoniaceae
Genus: Cladia
Nyl. (1870)
Type species
Cladia aggregata
(Sw.) Nyl. (1870)
Synonyms[1]
  • Trichocladia Stirt. (1882)
  • Clathrina Müll.Arg. (1883)
  • Heterodea Nyl. (1868)
  • Ramalinora Lumbsch (1995)[2]

Cladia is a genus of lichen-forming fungi in the family Cladoniaceae. Cladia species have a crustose or squamulose (scaly) primary thallus and a fruticose, secondary thallus, often referred to as pseudopodetium. The type species of the genus, Cladia aggregata, is widely distributed, occurring in South America, South Africa, Australasia and South-East Asia to southern Japan and India. Most of the other species are found in the Southern Hemisphere.

Taxonomy

Cladia was circumscribed by Finnish lichenologist William Nylander in 1870 with Cladia aggregata as the type species.[3] Rex Filson created a separate family, the Cladiaceae, to contain the genus,[4] but this is no longer used and the genus is classified in the family Cladoniaceae.[5] An updated phylogeny of the Cladoniaceae was published in 2018.[6]

Molecular phylogenetic evidence showed that the genera Heterodea and Ramalinora were nested within Cladina,[7][8] so they are now synonyms. Because the name Heterodea predated Cladina, the generic name Cladia was proposed for conservation against Heterodea to avoid several nomenclatural changes that would have been necessary.[9][10] The proposal was accepted by both the Nomenclature Committee for Fungi and the General Committee.[11][12]

Description

Cladia consists of fruticose lichens with typically a perforate pseudopodetia with an external cartilaginous layer. The apothecia are black or brown and have a persistent proper margin and a flat disc. The asci are eight-spored with a well-developed amyloid tholus with a darker-staining central tube. The pycnidia are immersed in grossly black to brown projections that are initially blunt and measure up to 0.5 mm long and eventually become needle-like and up to 1 mm long.[13]

Ecology

Eight species of lichenicolous fungi are known to grow on Cladia:[14] Echinothecium cladoniae Keissl. nom. nud. (on C. aggregata from Columbia; Etayo 2002), Lichenoconium echinosporum D. Hawksw. (on C. muelleri from Australia; Hawksworth 1977), Roselliniella heterodeae Matzer & Hafellner (on C. muelleri from Australia; Matzer & Hafellner 1990); Pyrenidium actinellum Nyl. agg. (on C. aggregata from Columbia; Etayo 2002); Endococcus cladiae Zhurb. & Pino-Bodas; Lichenopeltella soiliae Zhurb. & Pino-Bodas, and Lichenosticta hoegnabbae Zhurb. & Pino-Bodas.

Chemistry

The type species, Cladia aggregata, is highly variable morphologically and has extensive chemical variation.[15] Kantvilas and Elix (1999) revised the C. aggregata complex in Tasmania and identified six chemotypes in C. aggregata sensu stricto.[13] Similarly, five chemotypes were found in specimens from the states of Paraná and Santa Catarina, Brazil. In both studies, most of them contained barbatic acid and 4-O-demethylbarbatic acid.[16] Barbatic acid is cytotoxic, and kills the worms of Schistosoma mansoni in in vitro studies. This is the causative agent of Schistosomiasis.[17]

Species

Revisions of Cladia published in 2012 and 2013 included 23 species in the genus.[18][19] (As of December 2023), Species Fungorum accepts 20 species in Cladia:[20]

  • Cladia aggregata (Sw.) Nyl. (1870)
  • Cladia beaugleholei (Filson) Parnmen & Lumbsch (2011)[18]
  • Cladia blanchonii Parnmen & Lumbsch (2013)[18]
  • Cladia cryptica Parnmen & Lumbsch (2013)[18]
  • Cladia deformis Kantvilas & Elix (2000)[13]
  • Cladia dumicola Kantvilas & Elix (2000)[13]
  • Cladia glaucolivida (Müll.Arg.) Parnmen & Lumbsch (2012)[18]
  • Cladia globosa Ahti (2000)[15]
  • Cladia gorgonea (Eschw.) Parnmen & Lumbsch (2013)
  • Cladia inflata (F.Wilson) D.J.Galloway (1977)
  • Cladia moniliformis Kantvilas & Elix (1987)[21]
  • Cladia muelleri (Hampe) Parnmen, Elix & Lumbsch (2012)[18]
  • Cladia mutabilis Kantvilas & Elix (2000)[13]
  • Cladia neocaledonica (Räsänen) Parnmen & Lumbsch (2013)
  • Cladia occulta Kantvilas (2012)[22] – Tasmania
  • Cladia oreophila Kantvilas & Elix (2000)[13]
  • Cladia schizopora (Nyl.) Nyl. (1888)
  • Cladia tasmanica Parnmen & Lumbsch (2013)[18]
  • Cladia terebrata (Laurer) Parnmen & Lumbsch (2013)
  • Cladia xanthocarpa Elix & P.M.McCarthy (2018)[23] – Australia

References

  1. "Synonymy: Cladia Nyl.". Species Fungorum. http://www.speciesfungorum.org/Names/SynSpecies.asp?RecordID=1072. 
  2. Lumbsch, H.T.; Rambold, G.; Elix, J.A. (1995). "Ramalinora (Ramalinaceae) – a new lichen genus from Australia". Australian Systematic Botany 8 (3): 521–530. doi:10.1071/SB9950521. 
  3. Nylander, William (1870) (in fr). Recognitio Monographica Ramalinarum. Caen: Impr. de P. Le Blanc-Hardel. p. 69. 
  4. Filson, R.B. (1981). "A revision of the lichen genus Cladia Nyl.". Journal of the Hattori Botanical Laboratory 49: 1–75. 
  5. Wijayawardene, Nalin; Hyde, Kevin; Al-Ani, LKT; Dolatabadi, S; 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. 
  6. Stenroos, Soili; Pino‐Bodas, Raquel; Hyvönen, Jaakko; Lumbsch, Helge Thorsten; Ahti, Teuvo (2018). "Phylogeny of the family Cladoniaceae (Lecanoromycetes, Ascomycota) based on sequences of multiple loci". Cladistics 35 (4): 351–384. doi:10.1111/cla.12363. PMID 34633698. 
  7. Lumbsch, H. Thorsten; Parnmen, Sittiporn; Rangsiruji, Achariya; Elix, J. (2010). "Phenotypic disparity and adaptive radiation in the genus Cladia (Lecanorales, Ascomycota)". Australian Systematic Botany 23 (4): 239–247. doi:10.1071/SB10010. 
  8. Parnmen, Sittiporm; Rangsiruji, Achariya; Mongkolsuk, Pachara; Boonpragob, Kansri; Elix, John A.; Lumbsch, H. Thorsten (2010). "Morphological disparity in Cladoniaceae: The foliose genus Heterodea evolved from fruticose Cladia species (Lecanorales, lichenized Ascomycota)". Taxon 59 (3): 841–849. doi:10.1002/tax.593013. 
  9. Lumbsch, H. T.; Ahti, T.; Parmen, S. (2010). "(1926) Proposal to conserve Cladia against Heterodea (Ascomycota)". Taxon 59 (2): 643. doi:10.1002/tax.592032. 
  10. Lumbsch, H.T.; Ahti, T.; Parmen, S. (2010). "Proposal 1926: To conserve Cladia against Heterodea (Ascomycota)". Mycotaxon 111: 509–511. 
  11. Norvell, L.L. (2011). "Report of the Nomenclature Committee for Fungi: 16". Taxon 60 (1): 223–226. doi:10.1002/tax.601023. 
  12. Barrie, F. (2011). "Report of the General Committee: 11". Taxon 60 (4): 1211–1214. doi:10.1002/tax.604026. 
  13. 13.0 13.1 13.2 13.3 13.4 13.5 Kantvilas, Gintaras; Elix, John A. (1999). "Studies on the lichen genus Cladina Nyl. in Tasmania: the C. aggregata complex". Muelleria 12 (2): 135–162. doi:10.5962/p.198394. https://www.researchgate.net/publication/279181731. 
  14. Zhurbenko, Mikhail P.; Pino-Bodas, Raquel (2015). "New lichenicolous fungi growing on Cladia in New Zealand". The Lichenologist 47 (6): 395–402. doi:10.1017/S002428291500033X. 
  15. 15.0 15.1 Ahti, Teuvo (2000). "Cladoniaceae". Flora Neotropica. Flora Neotropica Monograph (New York Botanical Garden Press) 78: 1–362. 
  16. Charnei, Ana Marcia; Eliasaro, Sionara (2013). "Notes on the chemical variation of the lichenized Ascomycota Cladia aggregata (Cladoniaceae) in the states of Paraná and Santa Catarina, Brazil". Acta Botanica Brasilica 27 (3): 624–625. doi:10.1590/S0102-33062013000300020. 
  17. Silva, H.A.M.F.; Aires, A.L.; Soares, C.L.R.; Sá, J.L.F.; Martins, M.C.B.; Albuquerque, M.C.P.A.; Silva, T.G.; Brayner, F.A. et al. (2020). "Barbatic acid from Cladia aggregata (lichen): Cytotoxicity and in vitro schistosomicidal evaluation and ultrastructural analysis against adult worms of Schistosoma mansoni". Toxicology in Vitro 65: 104771. doi:10.1016/j.tiv.2020.104771. PMID 31935486. 
  18. 18.0 18.1 18.2 18.3 18.4 18.5 18.6 Parnmen, Sittiporn; Lumbsch, H. Thorsten (2012). "New combinations in the genus Cladia". The Lichenologist 44 (2): 297–298. doi:10.1017/S0024282911000715. 
  19. Parnmen, Sittiporn; Leavitt, Steven D.; Rangsiruji, Achariya; Lumbsch, H. Thorsten (2013). "Identification of species in the Cladia aggregata group using DNA barcoding (Ascomycota: Lecanorales)". Phytotaxa 115 (1): 1. doi:10.11646/phytotaxa.115.1.1. 
  20. Species Fungorum. "Cladia". Catalogue of Life. https://www.catalogueoflife.org/data/taxon/3QC4. 
  21. Kantvilas, G.; Elix, J.A. (1987). "A new species of Cladia (lichenized Ascomycotina) from Tasmania". Mycotaxon 29: 199–205. 
  22. Kantvilas, G.; Jarman, S.J.; McCaffrey, N. (2012). "A contribution to the flora of the Meredith Range, north-west Tasmania". Kanunnah 5: 127–140. https://www.researchgate.net/publication/277013616. 
  23. Elix, John A.; McCarthy, Patrick M. (2018). "Ten new lichen species (Ascomycota) from Australia". Australasian Lichenology 82: 20–59. doi:10.7751/telopea11598. 

Wikidata ☰ Q5124923 entry