Biology:Buellia peregrina
| Buellia peregrina | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Caliciales |
| Family: | Caliciaceae |
| Genus: | Buellia |
| Species: | B. peregrina
|
| Binomial name | |
| Buellia peregrina Bungartz & V.Wirth (2007)
| |
Buellia peregrina is a species of saxicolous (rock-dwelling), crustose lichen in the family Caliciaceae.[1] It is found in the Namib desert in Namibia.
Taxonomy
The lichen was formally described as a new species in 2007 by lichenologists Frank Bungartz and Volkmar Wirth. The type specimen was collected between Swakopmund and Hentiesbai in the Namib (a coastal desert in Southern Africa). The species name originates from the Latin word peregrinus, ("foreign"). This signifies that all specimens were discovered on allochthonous limestone, meaning stones not originally part of the sediment layer in that specific region. It is the only species in genus Buellia that grows euendolithically, i.e., with its thallus entirely within its rock substratum.[2]
Description
The thallus of this crustose lichen has a pale beige to rose surface that changes the colour of the white limestone it inhabits. A [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] is present but barely distinguishable from the [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]]. The apothecia are [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] and initially immersed in cavities; they typically measure 0.2–0.4 mm in diameter. They emerge at maturity with a black, plane, and epruinose to faintly pruinose [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] that becomes convex.[2]
The [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] of the apothecia is thin and black, with a narrow, poorly differentiated [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] containing deep blue and reddish-brown pigmentation. The hymenium is hyaline, and the [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] are simple to moderately branched with a deep blue pigmented cap. The [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] is deep blue (a distinctive [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] of this species), while the [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] is reddish-brown. The asci are 8-spored and [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]], with oblong to ellipsoid, one-septate [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] that do not display any ornamentation. [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] were not observed in this lichen. Collected specimens did not contain any detectable lichen products.[2]
See also
References
- ↑ "Buellia peregrina Bungartz & V. Wirth". Species 2000: Naturalis, Leiden, the Netherlands. https://www.catalogueoflife.org/data/taxon/NNK6.
- ↑ 2.0 2.1 2.2 Bungartz, Frank; Wirth, Volkmar (2006). "Buellia peregrina sp. nov., a new, euendolithic calcicolous lichen species from the Namib Desert". The Lichenologist 39 (1): 41–45. doi:10.1017/s0024282907006329.
Wikidata ☰ Q10437371 entry
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