Some form thin, tight crusts on stone that almost looks like old paint, called crustose lichen. Others are looser and leafier, curling up at the edges like old lettuce, called foliose lichen.

Image Lichens come in colors found nowhere else in nature, thanks to chemicals secreted by the fungus within them. Splotches of yellow on bark or rock could be the foliose lichen called ...

Lichen that changes its reproductive strategy according to the climate Date: November 29, 2017 Source: SINC Summary: Symbiosis between fungi and microalgae gives rise to lichen. Some lichen ...

Squamulose lichens form tight clusters of flattened pebble-like patches. Foliose lichens grow in flattened leaf-like sheets that are loosely bound. Fruticose lichens have freestanding branching tubes.

The research involved two basic lichen growth forms, foliose and fruticose. The St Clairs are confident that any species from either group would produce accurate results for copper pollution. The next ...

I saw this lichen on a living tree recently. It was growing well, confirming the clean air of Connemara. Paul Dunne, Co Galway This is Flavoparmelia caperata, a large foliose lichen that is ...

There are three forms of lichens, classified by the way they look. Foliose lichens can be flat, produce wavy folds like leaves of lettuce or can be full of ridges. Branchy fruticose lichens appear ...