Leproplaca cirrochroa

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Leproplaca cirrochroa
Caloplaca cirrochroa T82.JPG
in the Tatra Mountains
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Teloschistales
Family: Teloschistaceae
Genus: Leproplaca
Species:
L. cirrochroa
Binomial name
Leproplaca cirrochroa
(Ach.) Arup, Frödén & Søchting (2013)
Synonyms [1]
List
  • Lecanora cirrochroaAch. (1814)
  • Parmelia murorum var. cirrochroa(Ach.) Schaer. (1840)
  • Lecanora murorum var. cirrochroa(Ach.) Rabenh. (1845)
  • Placodium murorum var. cirrochroum(Ach.) Flot. (1849)
  • Physcia callopisma var. cirrochroa(Ach.) A.Massal. (1852)
  • Amphiloma murorum var. cirrochroum(Ach.) Körb. (1855)
  • Placodium cirrochroum(Ach.) Rabenh. (1856)
  • Amphiloma cirrochroum(Ach.) Körb. (1859)
  • Xanthoria cirrochroa(Ach.) Zwackh (1864)
  • Physcia cirrochroa (Ach.) Arnold (1869)
  • Caloplaca cirrochroa(Ach.) Th.Fr. (1871)
  • Gasparrinia cirrochroa f. leprosa(Lamy) Verseghy (1971)
  • Gasparrinia cirrochroa(Ach.) Stein (1879)
  • Placodium murorum subsp. cirrochroum(Ach.) Tuck. (1882)
  • Lecanora cirrochroa f. leprosa Lamy (1884)
  • Placodium cirrochroum f. leprosumShirley [as 'leprosa'] (1889)
  • Caloplaca cirrochroa f. leprosa(Lamy) Zahlbr. (1931)

Leproplaca cirrochroa is a widespread and common species of saxicolous (rock-dwelling), crustose lichen in the family Teloschistaceae. [2] It grows up to 5 cm across, featuring a placodioid thallus with narrow, finger-like lobes that adhere closely to the surface, showing intricate division and ranging in colour from dirty orange to brownish orange, often with paler, pruinose orange ends.

Contents

Taxonomy

The species was first scientifically described by Swedish lichenologist Erik Acharius in 1814, as a member of the genus Lecanora . Ulf Arup and colleagues transferred it to the genus Leproplaca in 2013, following a molecular phylogenetics-based restructuring of the family Teloschistaceae. [3]

Description

Leproplaca cirrochroa is a distinctive lichen species that can grow up to 5 cm (2 in) across. Its thallus is placodioid , forming narrow, finger-like lobes that are closely appressed against the substrate . These lobes are intricately divided and arranged in irregularly rounded formations or sometimes as small, scattered, or contiguous thalli. The colouration of Leproplaca cirrochroa ranges from dirty to brown-orange, with the ends of the lobes often having a pruinose and paler orange hue. [4]

The lobe ends are typically about 0.2–0.5 mm wide, rounded, and occasionally forked. They are shallowly convex and elongated, often lying contiguous to each other and separated by almost parallel-aligned furrows. Soralia are usually present on the laminal surface and are scattered across the thallus. These soralia are small and flat, rounded, and can be up to 0.8 mm in diameter. The soredia produced are farinose and lemon-yellow in colour. [4]

Apothecia (fruiting bodies) are rare in Leproplaca cirrochroa, measuring up to 0.5 mm in diameter and scattered across the thallus. When present, the apothecia are flat with a persistent thalline margin that is orange in colour. The disc of the apothecia is a deeper orange shade. The paraphyses (filament-like support structures) are flexuose and mostly not swollen at the tips. Ascospores are narrowly ellipsoid, measuring 10–15 by 5 μm with a septum that is 2–3 μm wide, which is less than one-third of the length of the ascospore. All parts of this lichen react with a K+ (purple) colouration when subjected to chemical spot tests. [4]

Habitat and distribution

Leproplaca cirrochroa is widely distributed, having been recorded from Africa, Asia, Australia, Europe, and North and South America. [4]

Related Research Articles

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References

  1. ↑ "Synonymy. Current Name Leproplaca cirrochroa (Ach.) Arup, Frödén & Søchting, Nordic Jl Bot. 31(1): 72 (2013)". Species Fungorum . Retrieved 22 December 2023.
  2. ↑ "Leproplaca". Catalogue of Life . Species 2000: Leiden, the Netherlands. Retrieved 22 December 2023.
  3. ↑ Arup, Ulf; Søchting, Ulrik; Frödén, Patrik (2013). "A new taxonomy of the family Teloschistaceae". Nordic Journal of Botany. 31 (1): 16–83. doi:10.1111/j.1756-1051.2013.00062.x.
  4. 1 2 3 4 Fletcher, A.; Laundon, J.R. (2009). "Caloplaca Th. Fr. (1860)". In Smith, C.W.; Aptroot, A.; Coppins, B.J.; Fletcher, F.; Gilbert, O.L.; James, P.W.; Wolselely, P.A. (eds.). The Lichens of Great Britain and Ireland (2nd ed.). London: The Natural History Museum. pp. 258–259. ISBN   978-0-9540418-8-5.
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