Verrucaria nodosa
| Verrucaria nodosa | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Eurotiomycetes |
| Order: | Verrucariales |
| Family: | Verrucariaceae |
| Genus: | Verrucaria |
| Species: | V. nodosa
|
| Binomial name | |
| Verrucaria nodosa Orange (2013)
| |
Verrucaria nodosa is a species of saxicolous (rock-dwelling), crustose lichen in the family Verrucariaceae.[1] Found in freshwater habitats in Wales, it was formally described as a new species in 2013 by lichenologist Alan Orange. The type specimen was collected by the author north-west of Llanuwchllyn, Merioneth, where it was found growing on an unshaded rock in a stream. The lichen has a grey-green to dark brown thallus with an uneven surface crust. Its ascomata are in the form of somewhat convex to hemispherical perithecia measuring 220–460 μm in diameter, with an inconspicuous or tiny ostiole. Ascospores are ellipsoid and colourless, lack any septa, and typically measure 20.5–22.2–24.0 by 90–97–105 μm. The species is known only from a few streams in Wales, where it grows on shaded or lightly shaded rocks. Associated lichen species include Ionaspis lacustris, Rhizocarpon lavatum, Porpidia hydrophila, Sporodictyon cruentum, and Trapelia coarctata, as well as the mosses Racomitrium aciculare and Scapania undulata.[2]
See also
[edit]References
[edit]- ^ "Verrucaria nodosa Orange". Catalogue of Life. Species 2000: Leiden, the Netherlands. Retrieved 18 November 2022.
- ^ Orange, Alan (2013). "Four new species of Verrucaria (Verrucariaceae, lichenized Ascomycota) from freshwater habitats in Europe". The Lichenologist. 45 (3): 305–322. doi:10.1017/s0024282912000898. S2CID 83840672.
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