LICHENS

The basidiolichens are tropical in distribution and are found growing upon bare soil, rocks and trees.

STUDY OF FEATURES FRUTICOSE LICHENS

The foliose lichens have a flat, leaf-like, lobed or deeply incised thallus. It is attached to the substratum only at certain points by rhizines.

The crustose lichens are hard, granular crusts on rocks and bark of the trees.