Arthotheliopsis
| Arthotheliopsis | |
|---|---|
Scientific classification 
| |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Graphidales |
| Family: | Gomphillaceae |
| Genus: | Arthotheliopsis Vain. (1896)[1] |
| Type species | |
| Arthotheliopsis hymenocarpoides Vain. (1896)
| |
| Species | |
|
A. floridensis | |
Arthotheliopsis is a genus of fungi in the family Gomphillaceae.[2] It comprises five species of crustose lichens. The genus was introduced by the Finnish lichenologist Edvard August Vainio in 1896, with A. hymenocarpoides assigned as the type species.
Taxonomy
Vainio circumscribed the genus in 1896 for a group of small, rather inconspicuous crustose lichens with a simple construction: the thallus is thin and homoiomerous (i.e. it lacks a differentiated cortex), formed by tightly interwoven, thin-walled hyphae and containing a green, protococcoid green alga as the photobiont. The fruiting bodies are minute, round and flat, and they develop immersed in the thallus; he emphasised that they have only a very thin lateral exciple and no true perithecial wall. The hymenium bears numerous paraphyses that may be simple or sparsely branched, and the ascospores are colourless, elongate to spindle-shaped, divided by several septa or sometimes with a muriform (brick-like) pattern.[1]
Vainio selected Arthotheliopsis hymenocarpoides as the type species and described it from tropical America on the surfaces of tree leaves, emphasising the genus's foliicolous habit. In diagnosing Arthotheliopsis, he contrasted it with superficially similar arthonioid genera (such as Chiodecton, Arthonia and Lecanactis), noting the combination of an immersed, membranous apothecium, a very thin lateral exciple, and colourless multi-septate spores as the features that set it apart.[1]
Species
As of December 2025, Species Fungorum (in the Catalogue of Life) accepts five species of Arthotheliopsis:[3]
- Arthotheliopsis floridensis Lücking & W.R.Buck (2007)[4]
- Arthotheliopsis hymenocarpoides Vain. (1896)
- Arthotheliopsis planicarpa (Lücking) Lücking, Sérus. & Vězda (2005)[5]
- Arthotheliopsis serusiauxii (Lücking) Lücking, Sérus. & Vězda (2005)[5]
- Arthotheliopsis tricharioides (Kalb & Vězda) Lücking, Sérus. & Vězda (2005)[5]
References
- ^ a b c Vainio, Edvard A. (1896). "Lichenes Antillarum a W.R. Elliott collecti". Journal of Botany, British and Foreign (in Latin). 34: 204–210.
- ^ 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.
- ^ "Arthotheliopsis". Catalogue of Life. Species 2000: Leiden, the Netherlands. Retrieved 3 December 2025.
- ^ Lücking, Robert; Buck, William R.; Plata, Eimy Rivas (2007). "The lichen family Gomphillaceae (Ostropales) in eastern North America, with notes on hyphophore development in Gomphillus and Gyalideopsis". The Bryologist. 110 (4): 622–672. doi:10.1639/0007-2745(2007)110[622:TLFGOI]2.0.CO;2.
- ^ a b c Lücking, Robert; Sérusiaux, Emmanuël; Vězda, Antonín (2005). "Phylogeny and systematics of the lichen family Gomphillaceae (Ostropales) inferred from cladistic analysis of phenotype data". The Lichenologist. 37 (2): 123–170. doi:10.1017/S0024282905014660. hdl:2268/175274.