 Foliose lichens such as the one shown on a tree trunk at the right take their
name from the fact that they are vaguely similar to "foliage," or leaves.
The lichen in the picture is about six inches (15 cm) across.
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FOLIOSE LICHENS
| Foliose lichens such as the one shown on a tree trunk at the right take their
name from the fact that they are vaguely similar to "foliage," or leaves.
The lichen in the picture is about six inches (15 cm) across.
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When foliose lichens such as the one at the right mature, reproductive
"cups" form in the center. These cups are provided by the fungal part of the
lichen, so it's no accident that they look like fruiting structure of a 
At the right is another foliose
lichen, this one on a tree twig. The whole picture covers an area about three inches
across (8 cm). In this species, the fruiting bodies, instead of being tiny cups, appear at
the curled edges of the lichen body.