Everniopsis

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Single-species genus of lichen

title: "Everniopsis" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["parmeliaceae", "lichen-genera", "lecanorales-genera", "taxa-named-by-william-nylander-(botanist)", "taxa-described-in-1860"] description: "Single-species genus of lichen" topic_path: "general/parmeliaceae" source: "https://en.wikipedia.org/wiki/Everniopsis" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Single-species genus of lichen ::

| image = | image_caption = | parent_authority = Nyl. (1860) | taxon = Everniopsis trulla | authority = (Ach.) Nyl. (1860) | synonyms_ref = | synonyms = ;Genus

  • Parmelia sect. Everniopsis (Nyl.) Stizenb. (1862)
  • Hendrickxia P.A.Duvign. (1942) ;Species
  • Parmelia trulla Ach. (1803)
  • Borrera trulla (Ach.) Ach. (1810)
  • Evernia trulla (Ach.) Nyl. (1858)

Everniopsis is a fungal genus in the family Parmeliaceae. It consists of a single species, the bark-dwelling lichen Everniopsis trulla, which occurs in Africa and South America.

Systematics

Everniopsis trulla was first formally described by Erik Acharius in 1803 with the name Parmelia trulla. The type material, collected in Peru, is kept at the herbarium of the Department of Botany at the Swedish Museum of Natural History. William Nylander transferred the taxon to the new genus Everniopsis in 1860. Ernst Stizenberger thought that *Everniopsis * should be a section of genus Parmelia, and proposed this classification in an 1862 publication. The genus Hendrickxia, circumscribed by Belgian botanist Paul Auguste Duvigneaud in 1942 with Hendrickxia pseudoreticulata as the type species, has been folded into synonymy with Everniopsis.

Molecular phylogenetic analysis indicates that Everniopsis is in the Psiloparmelioid clade of the family Parmeliaceae, along with the genus Psiloparmelia.

Description

Evernipiopsis has a thallus attached by a holdfast to its substrate. The lobes comprising the thallus are linearly elongated, split into two at the ends, and longitudinally grooved (canaliculate). The thallus lacks both rhizines (root-like structures) and cilia (short, eyelash-like hair). Its conidia (asexual spores) are rod-shaped with swellings at each end (bifusiform). It produces ascospores that are ellipsoid in shape, measuring 12–16 by 7–10 μm. The superficially similar genus Everniastrum, in contrast, does not have a holdfast, it does have both rhizines and cilia, and its conidia are cylindrical.

Secondary chemicals that have been identified from Everniopsis trulla include usnic acid, atranorin, and ethyl haematommate.

Habitat and distribution

Everniopsis trulla is a corticolous lichen and occurs in Africa and South America. On the latter continent, the lichen occurs at high elevations from Mexico south to northern Chile.

References

References

  1. (1803). "Methodus qua Omnes Detectos Lichenes Secundum Organa Carpomorpha ad Genera, Species et Varietates Redigere atque Observationibus Illustrare Tentavit Erik Acharius". F.D.D. Ulrich.
  2. (2017). "Aislamiento y elucidación estructural de un compuesto nitrogenado y del haematomato de etilo del liquen ''Everniopsis trulla''". Revista de la Sociedad Química del Perú.
  3. (2007). "Testing morphology-based hypotheses of phylogenetic relationships in Parmeliaceae (Ascomycota) using three ribosomal markers and the nuclear RPB1 gene". Molecular Phylogenetics and Evolution.
  4. Dodge, Carroll W.. (1959). "Some lichens of Tropical Africa. III. Parmeliaceae". Annals of the Missouri Botanical Garden.
  5. (1942). "''Hendricxia'' Duvign., nouveau genre de Parméliacées des montagnes équatoriales". Bulletin du Jardin Botanique de l'État à Bruxelles.
  6. (1993). "Progress in the generic delimitation of ''Parmelia'' ''sensu lato'' lichens (Ascomycotina: Parmeliaceae) and a synoptic key to the Parmeliaceae". The Bryologist.
  7. (1860). "Synopsis Methodica Lichenum Omnium hucusque Cognitorum, Praemissa Introductione Lingua Gallica". L. Martinet.
  8. "Synonymy: ''Everniopsis trulla'' (Ach.) Nyl., Syn. meth. lich. (Parisiis) 1(2): 375 (1860)". [[Species Fungorum]].
  9. "Synonymy: ''Everniopsis'' Nyl., Syn. meth. lich. (Parisiis) 1(2): 374 (1860)". [[Species Fungorum]].
  10. (1862). "Beitrag zur Flechtensystematik". Bericht über die Tätigkeit der St. Gallischen Naturwissenschaftlichen Gesellschaft.
  11. (2012). "A review of the lichen family Parmeliaceae – history, phylogeny and current taxonomy". Nordic Journal of Botany.
  12. (2020). "Outline of Fungi and fungus-like taxa". Mycosphere.

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parmeliaceaelichen-generalecanorales-generataxa-named-by-william-nylander-(botanist)taxa-described-in-1860