Lecanora subimmergens
| Lecanora subimmergens | |
|---|---|
| |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Lecanorales |
| Family: | Lecanoraceae |
| Genus: | Lecanora |
| Species: | L. subimmergens
|
| Binomial name | |
| Lecanora subimmergens Vain. (1921)
| |
Lecanora subimmergens is a species of saxicolous (rock-dwelling) crustose lichen in the family Lecanoraceae.[1] It is widely distributed, occurring in Asia, America, and Australasia.
Taxonomy
[edit]It was described as new to science by the Finnish naturalist Edvard August Vainio in 1921. In his protologue, Vainio described the lichen as having a moderately thickened, smooth, areolate to cracked thallus composed of small, pale greyish-white, opaque areoles. He noted that the thallus had a yellowish reaction (lutescent) with potassium hydroxide solution (the K test), subsequently turning brownish. Vainio described the apothecia (fruiting bodies) as small, measuring 0.5–0.8 mm in diameter, initially immersed in the substrate but eventually slightly emergent, with a plane to occasionally slightly convex disc. The disc was reddish, smooth, slightly shiny, and had a thin, smooth margin, which was entire or rarely slightly flexuous. Internally, the hypothecium appeared pale, and the hymenium was approximately 70 μm thick, displaying a persistent blue reaction with iodine. Spores were described as colourless, simple, ellipsoid, measuring roughly 7 by 6 μm, with rounded ends. Paraphyses were closely coherent, thin, with reddish-brown epithecium. Vainio distinguished this species from related taxa by its smooth thallus and mostly immersed apothecia. The type specimen was collected from rock in Kōzuke Province, Japan.[2]
Habitat and distribution
[edit]Lecanora subimmergens is a saxicolous lichen with a nearly cosmopolitan distribution. It occurs in Asia, America, and Australasia.[3]
See also
[edit]References
[edit]- ^ "Lecanora subimmergens Vain". Catalogue of Life. Species 2000: Leiden, the Netherlands. Retrieved 28 February 2025.
- ^ Vainio, E.A. (1921). "Lichenes ab A. Yasuda in Japonia collecti. Continuatio I". Botanical Magazine Tokyo (in Latin). 35: 45–79. doi:10.15281/jplantres1887.35.45.
- ^ Papong, Khwanruan; Lumbsch, H. Thorsten (2011). "A taxonomic survey of Lecanora sensu stricto in Thailand (Lecanoraceae; Ascomycota)". The Lichenologist. 43 (4): 299–320. doi:10.1017/S0024282911000247.