Verrucoplaca
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Teloschistales
Family: Teloschistaceae
Genus: Verrucoplaca
S.Y.Kondr., Kärnefelt, Elix, A.Thell & Hur (2014)
Species:
V. verruculifera
Binomial name
Verrucoplaca verruculifera
(Vain.) S.Y.Kondr., Kärnefelt, Elix, A.Thell, Jung Kim, M.H.Jeong, N.N.Yu, A.S.Kondr. & Hur (2014)
Synonyms[1]
  • Placodium verruculiferum Vain. (1905)
  • Caloplaca verruculifera (Vain.) Zahlbr. (1931)
  • Gasparrinia verruculifera (Vain.) Dombr. (1970)
  • Polycauliona verruculifera (Vain.) Arup, Frödén & Søchting (2013)

Verrucoplaca is a monotypic fungal genus in the family Teloschistaceae.[2] It contains the single species Verrucoplaca verruculifera, a widely distributed saxicolous (rock-dwelling), crustose lichen that grows on coastal rocks.

Taxonomy

The genus Verrucoplaca was circumscribed in 2014 by lichenologists Sergey Kondratyuk, Ingvar Kärnefelt, John Alan Elix, Arne Thell, and Jae-Seoun Hur, following a molecular phylogenetics-led restructuring of the subfamily Xanthorioideae.[3] The type species was originally described in 1905 by Finnish lichenologist Edvard August Vainio as a species of Placodium,[4] and it was later proposed for inclusion in the genera Caloplaca, Gasparrinia, and Polycauliona.[1]

Description

Verrucoplaca is characterized by a thallus with a rosette-like structure with lobes. It contains secondary chemical compounds known as anthraquinones. Its cortical layer, which is the protective outer layer, is structured in a palisade plectenchymatous manner. The apothecia are of the zeorine type. Within the apothecia, the layer beneath the spore-producing surface, known as the subhymenium, is dotted with oil droplets. Verrucoplaca has a distinctive true exciple, a protective rim around the apothecia. The lichen produces conidia (asexual spores) that are narrowly oval in shape. A primary distinguishing chemical component of this genus are the anthraquinones associated with the parietin chemosyndrome.[3]

References

  1. 1 2 "GSD Species Synonymy. Current Name: Verrucoplaca verruculifera (Vain.) S.Y. Kondr., Kärnefelt, Elix, A. Thell, Jung Kim, M.H. Jeong, N.N. Yu, A.S. Kondr. & Hur, in Kondratyuk, Kärnefelt, Thell, Elix, Kim, Jeong, Yu & Hur, Acta bot. hung. 56(1-2): 164 (2014)". Species Fungorum. Retrieved 28 October 2023.
  2. ↑ "Verrucoplaca". Catalogue of Life. Species 2000: Leiden, the Netherlands. Retrieved 28 October 2023.
  3. 1 2 Kondratyuk, S.Y.; Kärnefelt, I.; Thell, A.; Elix, J.A.; Kim, J.; Jeong, M.H.; Yu, N.N.; Kondratiuk, A.S.; Hur, J.S. (2014). "A revised taxonomy of the subfamily Xanthorioideae (Teloschistaceae, Ascomycota) based on molecular phylogeny". Acta Botanica Hungarica. 56 (1–2): 141–178. doi:10.1556/abot.56.2014.1-2.12.
  4. ↑ Vainio, E.A. (1905). "Lichenes expeditionis G. Amdrup (1898–1902)". Meddelelser om Grønland (in Latin). 30: 125–140.
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