Phylloblastia

Phylloblastia is a genus of foliicolous (leaf-dwelling) lichens in the family Verrucariaceae. The genus was circumscribed in 1921 by Finnish lichenologist Edvard August Vainio, with Phylloblastia dolichospora assigned as the type species.

==Description== Genus Phylloblastia comprises crustose lichens with sometimes very tiny, scale-like formations. The of these lichens is either absent or very thin, structured in a manner. In species found outside of Europe, disc-shaped to shield-like isidia are often observed. The component is typically , featuring green algal cells that are angular-rounded and grouped irregularly or in clusters.