Glossary of lichen terms

'' is a , lichen. '' ''. The is pigmented dark brown, the is brown, and the algal cells are green; asci (containing ascospores) are visible in the . '' ''; 1000x magnification ==B==

'' is a lichen with ridged . ==C==

'' contain cyanobacteria. '' '', seen here growing in a depression of a calcareous rock, is a lichen. '', depicted in this 1843 illustration by Giuseppe Giovanni Antonio Meneghini, is a typical green alga. , a fungus; the inset shows the fungus (visible as black spots) parasitizing its host, a in genus Pertusaria''. '' lichen showing its crater-like ; scale bar = 1 mm ==D==

'') consists of mostly unbranched, stalks. ==E==

'' lichen has a growth form and an thallus outline. '' is an lichen; the thallus, hardly visible, grows under and around the rock crystals, while the are visible on the surface. 's series Lichenes Helvetici (Swiss lichens), published in 26 fascicles from 1823 to 1852. ==F==

'' has a made of branches. '' has lobes. ==G==

'' is a with a internal structure. '' has '' formed at the margins; scale bar = 20 μm ==H==

'' is named for its margins. '' ==I==

''; scale bar = 1 mm ==J==

'', seen here as greenish powder on the tree trunk, is an example of a with an and thallus. ''; scale bar = 0.5 mm ==M==

'') rest atop short stalks. '' containing eight , . ==N==

'' is covered with . (M. pertransita'' shown) '' shows that its have a or shape, and are gathered in clusters along of the . ''. ''. '' features rounded black at the end of . ==R==

'' ''. '' f. sorediata'' indicates the presence of erythrin. ==T==

of Ochrolechia tartarea refers to its coarse and fragmented surface. '' is a lichen. ==U==