Lichen - Gallery

Xanthoparmelia cf. lavicola, a foliose lichen, on basalt.

Usnea australis, a fruticose form, growing on a tree branch

Map lichen (Rhizocarpon geographicum) on rock

The cyanobacterium Hyella caespitosa with fungal hyphae in the lichen Pyrenocollema halodytes

Physcia millegrana (a foliose lichen), with an unlichenized polypore fungus (bottom right), on a fallen log.

Reindeer moss (Cladonia rangiferina)

Hypogymnia cf. tubulosa with Bryoria sp. and Tuckermannopsis sp. in the Canadian Rockies

Crustose lichens on limestone in Alta Murgia-Southern Italy

Cladonia cf. cristatella, a lichen commonly referred to as 'British Soldiers'. Notice the red tips.

Foliose lichens on rock growing outward and dying in the center. These lichens are at least several decades old.

Letharia sp. with Bryoria sp. on pine branches near Blackpine Lake, Washington

Lobaria oregana, commonly called 'Lettuce lichen,' in the Hoh Rainforest, Washington State

Xanthoria sp. lichen on volcanic rock in Craters of the Moon National Monument (Idaho, USA)

Lecanora cf. muralis lichen on the banks of the Bega canal in Timisoara

Caloplaca marina, a marine lichen

Microscopic view of lichen growing on a piece of concrete dust.