British soldier lichen

Cladonia cristatella

''Cladonia cristatella'', commonly known as the British soldier lichen, is a fruticose lichen belonging to the family Cladoniaceae. The species was first described scientifically by the American Botanist Edward Tuckerman in 1858.
Taxonomy
KingdomFungi
DivisionAscomycota
ClassLecanoromycetes
OrderLecanorales
FamilyCladoniaceae
GenusCladonia
SpeciesC. cristatella