Kuettlingeria

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Kuettlingeria
Kuettlingeria albolutescens
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Teloschistales
Family: Teloschistaceae
Genus: Kuettlingeria
Trevis.
(1857)
Type species
Trevis.
(1857)
Species

See text

Kuettlingeria is a

siliceous
outcrops in sunlit conditions.

Taxonomy

The lichen genus Kuettlingeria was first described by

Kuettlingeria visianica, which was previously known as Blastenia visianica and originally described by Abramo Bartolommeo Massalongo in 1852.[2] As of 2021, 14 species are included in the genus, but it is believed to be more diverse and contain other unnamed species.[3]

Description

The thallus of Kuettlingeria species is crustose,

Apothecia are zeorine, rarely biatorine, sometimes appearing lecanorine, but a thin true exciple is always present. The thalline exciple is the same colour as the thallus, while the disc and true exciple are usually different shades of red and yellow. Ascospores are polardiblastic, medium to broadly ellipsoid, with a medium-long septum. Pycnidia may be present or absent and are grey-black. The conidia are bacilliform to somewhat spherical.[3]

The thallus and thalline exciple of Kuettlingeria species are always without anthraquinones but contain the pigment Sedifolia-gray. The epihymenium and upper part of the true exciple usually contain anthraquinones, such as non-chlorinated parietin or chlorinated 7-Cl-emodin, fragilin, or 7-Cl-citreorosein. Sometimes, the epihymenium and true exciple contain both anthraquinones and Sedifolia-gray. In some species, two chemotypes are known within the same species—with red-coloured apothecia (with anthraquinones) and rarer with black-colored apothecia (without anthraquinones, only with Sedifolia-gray). Kuettlingeria diphyodes is the only exception in the group—the chemotype entirely without anthraquinones is only known.[3]

Habitat and distribution

Kuettlingeria species are found in the Northern Hemisphere, with a

montane–alpine zone.[3]

Species

As of March 2023[update],

Species Fungorum (in the Catalogue of Life) accepts 15 species of Kuettlingeria:[4]

Kuettlingeria teicholyta

Taxa formerly placed in Kuettlingeria:

References

  1. ^ Trevisan, V. (1857). "Nuovi studi sui licheni spettanti alle tribù delle Patellariee, Baeomycee e Lecideinee". Revista Periodica dei Lavori della Imperiale Regia Accademia di Padova (in Italian). 5: 63–79.
  2. ^ Massalongo, A.B. (1852). "Monografia dei licheni blasteniospori". Atti dell'Istituto Veneto Scienze. 2. 3(App. 3): 5–131 [117].
  3. ^
    S2CID 234535735
    .
  4. ^ "Kuettlingeria". Catalogue of Life. Species 2000: Leiden, the Netherlands. Retrieved 29 March 2023.
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