lichen
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.Pannariaceae. It has three species. The genus was
circumscribed
In geometry, the circumscribed circle or circumcircle of a polygon is a circle that passes through all the vertices of the polygon. The center of this circle is called the circumcenter and its radius is called the circumradius.
Not every po ...
by Scottish naturalist
James Stirton
James Stirton (1833, Coupar Angus, Perthshire – 14 January 1917, Glasgow) was a Scottish physician and one of Scotland's leading experts on cryptogamic botany. His investigations in bryology and lichenology earned him a world-wide reputation.
B ...
Psoromidium aleuroides
''Psoromidium'' is a genus of lichens in the family Pannariaceae. It has three species. The genus was circumscribed by Scottish naturalist James Stirton
James Stirton (1833, Coupar Angus, Perthshire – 14 January 1917, Glasgow) was a Scottis ...