Psoroglaena spinosa is a species of lichen in the family Verrucariaceae,[1] first described in 2016. It is characterized by its small fruticose (bushy) thallus, which is corticate, smooth, dull, and bright green, covering small areas and consisting of tiny squamules that branch into somewhat moniliform threads.
| Psoroglaena spinosa | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Eurotiomycetes |
| Order: | Verrucariales |
| Family: | Verrucariaceae |
| Genus: | Psoroglaena |
| Species: | P. spinosa
|
| Binomial name | |
| Psoroglaena spinosa | |
Taxonomy
editPsoroglaena spinosa was formally described by the lichenologists Gothamie Weerakoon and André Aptroot in 2016. The type specimen was collected in the Sinharaja Forest Reserve in Sri Lanka on 15 February 2015.[2]
Description
editThe thallus of Psoroglaena spinosa is microfruticose, consisting of tiny squamules dissected into branched, somewhat moniliform threads that are almost equally wide along their entire length, about 20–25 μm in width. These threads, for the most part, lie in one plane, with some parts emerging in other directions. The branching is dichotomous anisotomic. The cortex is hyaline (translucent), papillose, with dense and high papillae, approximately 1 μm wide and 2 μm high. The algae are chlorococcoid, measuring about 4–6 μm in diameter, 2–3-seriate (arranged in rows), but unordered. Ascomata and pycnidia were not observed to occur in this species.[2]
The chemical composition of Psoroglaena spinosa was not evaluated in the study.[2]
Distribution and habitat
editThis species is found on trees in wet lowland tropical rainforests and at the time of its publication was known only to occur in Sri Lanka.[2]
References
edit- ^ "Psoroglaena spinosa Weerakoon & Aptroot". Catalogue of Life. Species 2000: Leiden, the Netherlands. Retrieved 22 December 2023.
- ^ a b c d Weerakoon, Gothamie; Aptroot, André (2016). "Nine new lichen species and 64 new records from Sri Lanka". Phytotaxa. 280 (2): 152–162. doi:10.11646/phytotaxa.280.2.5.