Biology:Polymeridium inspersum
| Polymeridium inspersum | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Dothideomycetes |
| Order: | Trypetheliales |
| Family: | Trypetheliaceae |
| Genus: | Polymeridium |
| Species: | P. inspersum
|
| Binomial name | |
| Polymeridium inspersum Aptroot (2013)
| |
Polymeridium inspersum is a species of corticolous (bark-dwelling) lichen in the family Trypetheliaceae.[1] Found in pantropical regions, it was formally described as a new species in 2013 by Dutch lichenologist André Aptroot. This lichen closely resembles Polymeridium subcinereum but is differentiated by its [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]]. The type specimen of P. inspersum was collected by the author in Kuranda, Queensland, along the Jumrum Creek track, growing on a twig.[2]
The thallus of P. inspersum is [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] and pinkish-grey, exhibiting no fluorescence under ultraviolet light (UV−). The ascomata are 0.4–0.6 mm in diameter, with a spherical [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] that is [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] and solitary. The ostiole is apical, and the [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] is inspersed with oil droplets, featuring filaments that profusely anastomose. Each ascus contains 8 ascospores, which are iodine-negative, 3-septate, and measure 16–20 by 3–5 μm. The [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] are not ornamented, and their walls are not thickened. No chemical substances are detected in P. inspersum.[2]
Polymeridium inspersum has a pantropical distribution, with reported specimens from Brazil and the Philippines. The type specimen and another Australian specimen were previously identified as P. subcinereum by Aptroot. Additional specimens have been examined from Queensland, Australia, and Chapada do Araripe, Ceará, Brazil.[2]
References
- ↑ "Polymeridium inspersum Aptroot". Species 2000: Naturalis, Leiden, the Netherlands. https://www.catalogueoflife.org/data/taxon/4LB6Y.
- ↑ 2.0 2.1 2.2 Aptroot, A.; Cáceres, M.E.S. (2014). "A refined species concept in the tropical microlichen genus Polymeridium (Trypetheliaceae) doubles the number of known species, with a world key to species". Nova Hedwigia 98: 1–29. https://www.researchgate.net/publication/272137754.
Wikidata ☰ Q21302315 entry
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