Scutula

Quality 0.50 · 1 view · Updated 2 months ago

Genus of fungi

title: "Scutula" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["ramalinaceae", "lichenicolous-fungi", "lecanorales-genera", "taxa-named-by-charles-tulasne", "taxa-described-in-1852"] description: "Genus of fungi" topic_path: "general/ramalinaceae" source: "https://en.wikipedia.org/wiki/Scutula" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Genus of fungi ::

| image = | image_caption = | taxon = Scutula | authority = Tul. (1852) | type_species = Scutula wallrothii | type_species_authority = Tul. (1852) | subdivision_ranks = Species | subdivisions = | synonyms_ref = | synonyms = *Hollosia Gyeln. (1939)

Scutula is a genus of lichenicolous fungi in the family Ramalinaceae.

Taxonomy

The genus Scutula was circumscribed by French botanist Louis René Étienne Tulasne in 1862. The limits of the generic circumscription as well as the limits of certain species in Scutula was confused for a long time. In 1997, Triebel and colleagues applied the name Scutula specifically to a group of species growing on hosts of the Lecanorales suborder Peltigerineae, a monophyletic grouping of cyanobacteria-associated lichens. Before this, Scutula was applied to a diverse set of unrelated lichenicolous fungi featuring hyaline spores with a single septum and sessile apothecia.

Once classified in the family Micareaceae, molecular phylogenetic analysis showed Scutula to be nested within the Ramalinaceae, closely related to the genus Toninia. This familial placement has been accepted in recent large-scale updates of fungal classifications.

Description

Scutula species are characterized by apothecia that are either lecideine (where exciple forms the underside and outer layer of the apothecium, extending up to the rim, where it forms a darkened "proper margin") or biatorine (having a pale, not darkened proper margin and always lacking a thalline margin). The paraphyses are non-capitate (i.e., lacking a knob-like structure at the tip). Asci have a fuzzy amyloid (in Lugol's iodine solution after pre-treatment with KOH) axial tube structure of the ‘Scutula’-type. The ascospores are smooth, hyaline, and contain a single septum. Anamorphs associated with Scutula include Libertiella in the mesoconidia and Karsteniomyces in the macroconidia.

Species

References

References

  1. (2005). "Disintegration of the Micareaceae (lichenized Ascomycota)—a molecular phylogeny based on mitochondrial rDNA sequences". Mycological Research.
  2. (2010). "New and interesting lichenicolous fungi at the Botanische Staatssammlung München". The Lichenologist.
  3. Hawksworth, D.L.. (1986). "Notes on British lichenicolous fungi: V". Notes from the Royal Botanic Garden, Edinburgh.
  4. Hawksworth, D.L.. (2000). "Notes on some fungi occurring on ''Peltigera'', with a key to accepted species". Transactions of the British Mycological Society.
  5. (2003). "The lichenicolous fungi of Great Britain and Ireland: an overview and annotated checklist". The Lichenologist.
  6. (2017). "The 2016 classification of lichenized fungi in the Ascomycota and Basidiomycota–Approaching one thousand genera". The Bryologist.
  7. Santesson, R.. (1960). "Lichenicolous fungi from northern Spain". Svensk Botanisk Tidskrift.
  8. "Synonymy: ''Scutula'' Tul.". Species Fungorum.
  9. (1997). "The genus ''Scutula'' (lichenicolous ascomycetes, Lecanorales): species on the ''Peltigera canina'' and ''P. horizontalis'' groups". Symbolae Botanicae Upsalienses.
  10. Tulasne, L.-R.. (1852). "Mémoire pour servir à l'histoire organographique et physiologique des Lichens". Annales des Sciences Naturelles Botanique.
  11. (2007). "''Scutula tuberculosa'', the correct name of the ''Scutula'' growing on ''Solorina'' spp., with a key to ''Scutula'' s. str. in the Northern Hemisphere". The Lichenologist.
  12. (2018). "Outline of Ascomycota: 2017". Fungal Diversity.
  13. (2020). "Outline of Fungi and fungus-like taxa". Mycosphere.

::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::

ramalinaceaelichenicolous-fungilecanorales-generataxa-named-by-charles-tulasnetaxa-described-in-1852