Assertion: lichen's cyanobacteria | /r/HasProperty | green algal layer
Facets:
Source sentences:
text: Cyanobacteria can be a layer under the upper cortex or in tiny pockets on top of the upper cortex if there is a green algal layer already present.
text: Although cyanobacteria are called blue-green algae, they are actually bacteria, and are part of the bacteria kingdom, Monera.