Obryzum is a fungal genus in the monotypic family Obryzaceae, in the class Sordariomycetes. The relationship of this taxon to other taxa within the class is unknown (incertae sedis).[3][4]

Obryzaceae
Scientific classification
Kingdom:
Division:
Class:
Order:
Family:
Obryzaceae

Type genus
Obryzum
Wallr. (1825),[2]

The genus name of Obryzum is derived from the Ancient Greek word ὄβρυζον‎ meaning pure gold.

Reported as a parasitic on cyanobacterial lichens from the genus Leptogium.[5][6]

Description edit

The genus is mainly lichenicolous but with green algae on rocks or tree bark and seldom on mosses. Sexual morph: Ascomata perithecial, pyriform (pear-like), astromatic, immersed. Ostiole periphysate. Peridium hyaline with ostiolar region appearing light brown at times. Asci 4-8-spored, unitunicate, clavate, closely ellipsoid to ovoid, short-pedicellate, with barely visible apical ring, deliquescent at the base. Ascospores overlapping 1–2-seriate, hyaline, aseptate, smooth-walled, fusiform to limoniform or ellipsoid, lacking any mucilaginous sheath or appendage. Asexual morph is undetermined (adapted from Cannon & Kirk 2007, Maharachchikumbura et al. 2016).[7][8]

Distribution edit

It is mostly found in the north temperate zones,[5] and scattered worldwide. With most sightings in North America and Europe, with a few in Australia.[9] Such as Obryzum corniculatum is found in several places in Great Britain.[10]

Species edit

As accepted by Species Fungorum;[11]

Former species;

References edit

  1. ^ Körber, G.W. 1855. Systema lichenum Germaniae. :1-458
  2. ^ Naturgeschichte der Flechten 1: 251–253 (1825)
  3. ^ Lumbsch TH, Huhndorf SM. (December 2007). "Outline of Ascomycota – 2007". Myconet. 13. Chicago, USA: The Field Museum, Department of Botany: 1–58. Archived from the original on 2009-03-18.
  4. ^ Dr. Suharno, M.Si., Dra. Supeni Sufaati, M.Sc., Dr. Puguh Sujarta, M.Si. and Dra. Verena Agustini, M.Sc., Liken (lumut Kerak) Struktur Morfologi, Anatomi, Fungsi Ekologi, dan Manfaat ... (2021), p. 250, at Google Books
  5. ^ a b P. F. Cannon and P. M. Kirk (Editors) Fungal Families of the World (2007), p. 244, at Google Books
  6. ^ Geoffrey Clough Ainsworth Ainsworth & Bisby's Dictionary of the Fungi (2008), p. 477, at Google Books
  7. ^ "Sordariomycetes". www.sordariomycetes.org. Retrieved 31 December 2022.
  8. ^ Chethana, Thilini (8 November 2022). "Obryzaceae - Facesoffungi number: FoF 05205". Faces Of Fungi. Retrieved 31 December 2022.
  9. ^ "Obryzum Wallr". www.gbif.org. Retrieved 31 December 2022.
  10. ^ "Obryzum corniculatum". The British Lichen Society. Retrieved 31 December 2022.
  11. ^ "Obryzum - Search Page". www.speciesfungorum.org. Species Fungorum. Retrieved 31 October 2022.