Eschatogonia

Eschatogonia
Scientific classification Edit this classification
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Lecanorales
Family: Ramalinaceae
Genus: Eschatogonia
Trevis. (1853)
Type species
Eschatogonia montagnei
Trevis. (1853)

Eschatogonia is a genus of lichen-forming fungi in the family Ramalinaceae. It has seven species. The genus was circumscribed by the Italian lichenologist Vittore Benedetto Antonio Trevisan de Saint-Léon in 1853.

Description

The genus Eschatogonia includes lichens with a squamulose thallus, meaning the body of the lichen is composed of small, scale-like lobes known as squamules. These squamules have a single layer of cortical (outer) tissue on both their upper and lower surfaces. The lichen's photobiont, or photosynthetic partner, is a green alga.

The apothecia (fruiting bodies) are sessile (directly attached to the surface without a stalk) and lack a thalline exciple, meaning they do not have a rim of thallus-derived tissue around them. The apothecia range in colour from flesh-toned (carneous) to reddish brown. Each ascus (spore-producing sac) within the apothecia typically contains eight spores. These spores are colourless and fusiform, meaning they are spindle-shaped, tapering at both ends.

Species

References

  1. ↑ "Eschatogonia". Catalogue of Life. Species 2000: Leiden, the Netherlands. Retrieved 25 October 2024.
  2. ↑ Wijayawardene, N.N.; Hyde, K.D.; Dai, D.Q.; Sánchez-García, M.; Goto, B.T.; Saxena, R.K.; et al. (2022). "Outline of Fungi and fungus-like taxa – 2021". Mycosphere. 13 (1): 53–453. doi:10.5943/mycosphere/13/1/2. hdl:1854/LU-8754813.
  3. ↑ Trevisan de Saint-Léon, V. (1853). Spighe e Paglie Scritti Botanici Varj del Cavaliere Professore Vittore Trevisan [Ears and Straws: Various Botanical Writings of Cavaliere Professor Vittore Trevisan]. Vol. 1. pp. 1–64.
  4. 1 2 3 Swinscow, T.D.V.; Krog, H. (1988). Macrolichens of East Africa. London: British Museum (Natural History). p. 86. ISBN 978-0-565-01039-3.
  5. 1 2 3 Timdal, E. (2008). "Studies on Eschatogonia (Ramalinaceae) in Peru". The Lichenologist. 40 (1): 31–38. doi:10.1017/S0024282908007457.
  6. ↑ Alves, M.M.E.; Aptroot, A.; Rodrigues Lacerda, S.; Cáceres, M.E.S. (2014). "A new Eschatogonia and two new Gassicurtia species from Chapada do Araripe, Ceará, NE Brazil". The Bryologist. 117: 50–53. doi:10.1639/0007-2745-117.1.050.
  7. 1 2 Kalb, K. (2004). "New or otherwise interesting lichens. II". Bibliotheca Lichenologica. 88: 301–329.