Platythecium hypoleptum

Platythecium hypoleptum
Growing on American holly, in Alligator River National Wildlife Refuge, USA
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Ascomycota
Class:	Lecanoromycetes
Order:	Graphidales
Family:	Graphidaceae
Genus:	Platythecium
Species:	P. hypoleptum
Binomial name
Platythecium hypoleptum (Nyl.) M.Nakan. & Kashiw. (2003)
Synonyms [1]
Graphis hypoleptaNyl. (1863) Thalloloma hypoleptum(Nyl.) Staiger (2002)

Platythecium hypoleptum is a species of corticolous (bark-dwelling), crustose lichen in the family Graphidaceae.

Taxonomy

The lichen was first formally described as a species new to science in 1863 by Finnish botanist William Nylander, as a member of the genus Graphis . The type specimen was collected in Nova Granada (Brazil), at an altitude of 2,400 m (7,900 ft). Nylander noted some similarity with Graphis homographiza , and also compared it to Graphis dividens (now Phaeographis dividens ). ^[2] In 2002, Bettina Staiger proposed a transfer to genus Thalloloma , based on a reorganisation of family Graphidaceae that stressed the importance of ascocarps and their accessory organs as characteristics to delimit genera. ^[3] A year later, Minoru Nakanishi and Hiroyuki Kashiwadani suggested that the taxon should instead be in genus Platythecium . ^[4]

References

1. "Synonymy. Current Name: Platythecium hypoleptum (Nyl.) M. Nakan. & Kashiw., in Nakanishi, Kashiwadani & Moon, Bull. natn. Sci. Mus., Tokyo, B 29(2): 89 (2003)". Species Fungorum . Retrieved 30 June 2022.
2. Nylander, W. (1863). "Lichenographia Novogranatensis prodromus". Acta Societatis Scientiarum Fennicae (in Latin). 7 (2): 415–504 [472].
3. Staiger, Bettina (2002). Die Flechtenfamilie Graphidaceae: Studien in Richtung einer natürlichen Gliederung. Bibliotheca Lichenologica (in German). Vol. 85. p. 437.
4. Nakanishi, M.; Kashiwadani, H.; Moon, K.H. (2003). "Taxonomical notes on Japanese Graphidaceae (Ascomycotina), including some new combinations" (PDF). Bulletin of the National Science Museum Tokyo. 29: 83–90.