a lichen growth form; thalli leaf-like, flattened, with both an upper and a lower surface; usually attached to the twig by rhizines which grow from the lower surface, see Figs. 10 &: 12, pp. 15 & 17.

A lichen growth form with dorsiventral lobes (having upper and lower surfaces), usually loosely to tightly appressed to the substrate, 2-dimensional or weakly 3-D.

Of or relating to lower plants that have leaf-like structures

Leaf-like; made up of thin flat lobes, as are the thalli of certain types of lichen.

of lichens, leaf-like, attached to substrate by rhizines or basal attachment only

in lichens, a leaf-like growth.