Lichen
For other uses, see Lichen (disambiguation). A tree covered with leafy foliose lichens and shrubby fruticose lichens @media all and (max-width:720px){.mw-parser-output .tmulti>.thumbinner{width:100%!important;max-width:none!important}.mw-parser-output .tmulti .tsingle{float:none!important;max-width:none!important;width:100%!important;text-align:center}} Common lichen growth forms Letharia vulpina , wolf lichen, grows like a multiple-branched tuft or leafless mini-shrub, so it has a fruticose growth form. Flavoparmelia caperata has leaf-like structures, so it is foliose. Caloplaca marina grows like an orange crust coating the rock, so it is crustose. Caloplaca thallincola [sv] grows like a crust, and in a pattern that radiates outward from the center, so it has a crustose placodioid growth form. Pannaria lurida forms small leaf-like scales crustose below but free at the tips, so it is squamulose. Chrysothrix chlorina grows like powder du