Biology:Chapsa hypoconstictica
| Chapsa hypoconstictica | |
|---|---|
Scientific classification 
| |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Graphidales |
| Family: | Graphidaceae |
| Genus: | Chapsa |
| Species: | C. hypoconstictica
|
| Binomial name | |
| Chapsa hypoconstictica Rivas Plata & Lücking (2012)
| |
Chapsa hypoconstictica is a species of corticolous (bark-dwelling), crustose lichen-forming fungus in the family Graphidaceae.[1] It is a small, light gray-green lichen known only from lowland tropical rainforest in Madre de Dios, Peru, where it grows on tree bark. The species was described in 2012 and is distinguished from related species by containing hypostictic acid as its only lichen substance.
Taxonomy
Chapsa hypoconstictica was described as a new species by Eimy Rivas Plata and Robert Lücking from collections made at Los Amigos Research and Training Center (CICRA) in Madre de Dios, Peru. The species epithet hypoconstictica alludes to the species' unusual chemistry. It is distinguished from Chapsa albomaculata by containing hypostictic acid as its sole lichen substance.[2]
Description
This species is a bark-dwelling crustose lichen with a light gray-green thallus up to 3 cm (1.2 in) across and 40–70 μm thick. The surface is smooth to uneven and may be loosely corticate or partly lacking a [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]]. The photosynthetic partner ([[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]]) is a member of the green algal genus Trentepohlia, and the [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] and medulla contain clusters of calcium oxalate crystals.[2]
The apothecia are angular-rounded, [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]], and 0.3–0.6 mm wide, often occurring in clusters of 3–7. The [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] is pale brown and white-[[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]], with a lobulate, fused margin; a columella is absent. Ascospores are produced eight per ascus. They are ellipsoid, 5–7-septate, and measure 15–20 × 5–6 μm, with an iodine reaction reported as I+ (violet-blue). The only secondary metabolite reported is hypoconstictic acid.[2]
Habitat and distribution
Chapsa hypoconstictica is known from the type locality in lowland tropical rainforest at about 270 m (890 ft) elevation in Madre de Dios, Peru, where it was collected on tree bark in secondary forest at the Los Amigos Research and Training Center.[2]
References
- ↑ "Chapsa hypoconstictica Rivas Plata & Lücking". Species 2000: Leiden, the Netherlands. https://www.catalogueoflife.org/data/taxon/TMH5.
- ↑ 2.0 2.1 2.2 2.3 Plata, Eimy Rivas; Lücking, Robert (2013). "High diversity of Graphidaceae (lichenized Ascomycota: Ostropales) in Amazonian Perú". Fungal Diversity 58 (1): 13–32. doi:10.1007/s13225-012-0172-y. https://www.researchgate.net/publication/257799875.
Wikidata ☰ Q107565111 entry
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