Also found in: Thesaurus.
Switch to new thesaurus
|Noun||1.||division Lichenes - comprising the lichens which grow symbiotically with algae; sometimes treated as an independent group more or less coordinate with algae and fungi|
division - (botany) taxonomic unit of plants corresponding to a phylum
Lichenales, order Lichenales - category used especially in former classifications for organisms now constituting the division Lichenes
lichen - any thallophytic plant of the division Lichenes; occur as crusty patches or bushy growths on tree trunks or rocks or bare ground etc.
Lechanorales, order Lechanorales - category used in some classification systems for all lichens that produce apothecia
family Usneaceae, Usneaceae - fruticose lichens having prostrate or erect or pendulous thalli: genera Usnea, Evernia, Ramalina, Alectoria