Misplaced Pages

Siphula

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
Genus of lichens

Siphula
Siphula ceratites
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Pertusariales
Family: Icmadophilaceae
Genus: Siphula
Fr. (1831)
Type species
Siphula ceratites
(Wahlenb.) Fr. (1831)
Species

22

Synonyms
  • Nylanderiella Hue (1914)

Siphula is a genus of lichen-forming fungi in the family Icmadophilaceae. The widespread genus was circumscribed by the Swedish mycologist Elias Fries in 1831.

Description

The genus Siphula includes lichens with a shrubby, upright thallus (the lichen body) that is sparsely branched and has a whitish appearance. The outer surface, or cortex, is pseudoparenchymatous, meaning it consists of densely packed cells resembling plant parenchyma (common plant tissue). Siphula species partner with chlorococcoid algae, a type of green algae that supplies the lichen with energy through photosynthesis.

Inside the thallus, the medulla (inner tissue layer) is compact and has fungal filaments (hyphae) that are generally aligned in a longitudinal direction. No reproductive structures, such as apothecia (spore-producing bodies) or conidiomata (asexual spore-producing bodies), have been observed to occur in this genus.

Chemically, Siphula lichens contain various compounds including p- and m-depsides, dibenzofurans, and chromones, such as the compound siphulin.

Habitat and distribution

Siphula species are found growing on peaty soils and on acid-leached bark in temperate rainforests as well as in wet alpine environments. This genus has a cosmopolitan distribution, occurring across various regions worldwide.

Species

As of October 2024, Species Fungorum accepts 22 species of Siphula:

Siphula coriacea

References

  1. "Siphula Fr. 1831". MycoBank. International Mycological Association. Retrieved 2011-11-24.
  2. Hue, A. (1914). "Lichenes novos vel melius cognitos". Annales Mycologici (in Latin). 12 (6): 509–534.
  3. ^ Fries, E.M. (1831). Lichenographia Europaea Reformata [Reformed European Lichenography] (in Latin). pp. 7, 406.
  4. ^ Lambley, P.; Purvis, O.W. (2009). "Siphula Fr. (1831)". In Smith, C.W.; Aptroot, A.; Coppins, B.J.; Fletcher, A.; Gilbert, O.L.; James, P.W.; Wolseley, P.A. (eds.). The Lichens of Great Britain and Ireland. London: British Lichen Society. p. 841.
  5. "Species Fungorum - Search Page". www.speciesfungorum.org. Retrieved 2024-10-25.
  6. ^ Kantvilas, G. (2004). "New Australian species in the lichen genus Siphula Fr". Austrobaileya. 6 (4): 949–955. doi:10.5962/p.299704.
  7. ^ Kantvilas, G. (2023). "Three new species of siphuloid lichens, with a first key to the genus Parasiphula". The Lichenologist. 55 (1): 17–25. doi:10.1017/S0024282922000421.
  8. ^ Marcano, V. (2021). "The genus Siphula Fr. (Icmadophilaceae, Lichenized Fungi) in Venezuela". Phytotaxa. 489 (1): 10–26. doi:10.11646/phytotaxa.489.1.2.
  9. Nylander, W. (1860). Synopsis Methodica Lichenum Omnium hucusque Cognitorum, Praemissa Introductione Lingua Gallica [Methodical Synopsis of All Known Lichens, With an Introduction in French] (in Latin). Vol. 1. pp. 141–430.
  10. ^ Nylander, W. (1888). Lichenes Novae Zelandiae [Lichens of New Zealand] (in Latin). Paris: Paul Schmidt. pp. 1–156.
  11. Nylander, William (1863). "Prodromus Florae Novo-Granatensis ou enumeration des plantes de la Nouvelle-Grenade. Lichenes" [Prodrome of the Flora of New Granada or enumeration of plants from New Granada. Lichens]. Annales des Sciences Naturelles. Botanique. 4 (in Latin). 19: 286–382.
  12. Kantvilas, G.; Zedda, L.; Elix, J.A. (2003). "A remarkable new species of Siphula (lichenized fungi) from South Africa". Herzogia. 16: 21–25.
  13. Kantvilas, G. (1998). "Studies on the lichen genus Siphula in Tasmania II. The S. decumbens group". Herzogia. 13: 119–138. doi:10.1127/herzogia/13/1998/119.
  14. Marcano, V.; Castillo, L. (2021). "Siphula paramensis V. Marcano & L. Castillo (Icmadophilaceae, lichenized fungi), a new species from the high paramo in Venezuela". Phytotaxa. 512 (3): 169–178. doi:10.11646/phytotaxa.512.3.4.
  15. Nylander, W.illiam (1859). "Lichenes in regionibus exoticis quibusdam vigentes exponit synopticis enumerationibus" [Synoptic enumeration of lichens growing in certain exotic regions]. Annales des Sciences Naturelles. Botanique. 4 (in Latin). 11: 205–264.
  16. Santesson, R. (1966). "On the typification of some lichen names published by Gmelin". Botaniska Notiser: 84.
Taxon identifiers
Siphula
Categories: