Fruticose, foliose, crustose, and squamulose lichens generally have up to three different types of tissue, some lichens.
32.
Sometimes lichens contain structures made from fungal metabolites, for example crustose lichens sometimes have a polysaccharide layer in the cortex.
33.
The male paratype from Alert Stack was found amongst crustose lichens, suggesting these may also be fed on by larvae.
34.
This is called being rimose or areolate, and the " island " pieces separated by the cracks are called crustose placodioid.
35.
Young, smooth-barked hazel stems are colonised by crustose lichens of the Graphidion, including the very rare Graphis alboscripta.
36.
Pneophyllum amplexifrons ( Harvey ) comb . nov ., a mastophoroid crustose coralline red algal epiphyte from Natal, South Africa.
37.
Crustose lichens differ from the leprose lichen by having an upper cortex and algal cells that are located directly beneath the cortex.
38.
Lichens also sometimes contain structures made from fungal metabolites, for example crustose lichens sometimes have a polysaccharide layer in the cortex.
39.
It is a genus of thin crustose lichen of widely varying forms, commonly called "'comma lichens " '.
40.
For example, the crustose lichens " Graphis scripta " and " Ochrolechia parella " produce no symbiotic vegetative propagules.
