Peltigera horizontalis

Peltigera horizontalis is a species of lichen in the family Peltigeraceae. It was first described by British botanist William Hudson in 1762 as Lichen horizontalis. German botanist Johann Christian Gottlob Baumgarten transferred it to the genus Peltigera in 1790.

Peltigera horizontalis
Scientific classification
Kingdom:	Fungi
Division:	Ascomycota
Class:	Lecanoromycetes
Order:	Peltigerales
Family:	Peltigeraceae
Genus:	Peltigera
Species:	P. horizontalis
Binomial name
Peltigera horizontalis (Huds.) Baumg. (1790)
Synonyms[1]
Lichen horizontalis Huds. (1762) Peltidea horizontalis (Huds.) Ach. (1803) Peltigera canina var. horizontalis (Huds.) L.Marchand (1830) Peltigera rufescens var. horizontalis (Huds.) Spreng. (1832) Peltigera horizontalis var. muscorum Schaer. (1833) Peltigera horizontalis f. muscorum (Schaer.) Zahlbr. (1925)