Archive for the ‘Lichens’ Category

Miniscule Comes to Mind

  I walk loops around our backyard for the exercise, and so I can watch for any photographic opportunity.

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Lichens are common on both live and dead wood.

The Whitewash lichen (Phlyctis argena) above is similar to Common Button lichen (Buellia stillingiana), which has more black dots. The spores are produced in the dots, called the apothecia.

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I rotated this and the next picture, because it makes it easier to see the lichens.

Candleflame lichen (Candelaria concolor) is the yellowgreen one on the bark of a hackberry tree. Research online shows that its color can vary.

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My Lichens of the North Woods book gives 0.1-0.5 mm for the width of the its lobes!

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A Foliose Lichen

I find all kinds of lichens when I pick up sticks in the yard.

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The larger lichen with the leafy appearance is a foliose lichen.

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Blister lichen, with the dark disc-shaped fruiting bodies, is also a foliose lichen. The leafy part shows better in the upper right of the picture.

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The black “hairs” along the edges of the lichen are called “cilia.” I seldom see them on lichens.

Portrait of Foliose Lichen

This lichen grows on a tree in my backyard.

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It doesn’t know its name. I don’t know its name,

which in no way diminishes my enjoyment of its discovery.

Two More Lichens

This winter was so drab. Seemed like the sun seldom shone — and it wasn’t my imagination.

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I don’t burn all the sticks/small logs I find in the yard, for obvious reasons. I wonder if anything lived in the cavity of this blister lichens (Physcia stellaris)?

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here the blister lichens grew with the Candelaria concolor lichen. It commonly grows on elm, ash and sugar maple trees.

A Small Snow Cave

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A small snow cave partially covers ed blister lichen (Physcia stellaris)  growing on a limb in our dawn redwood tree. It’s also called a star rosette lichen. It’s a foliose lichen — a leafy looking lichen (say that three times fast). They reproduce by spores, which is the black in each disc.

Another New Lichen

This lichen grew on a dead tree, near a trail, along a lake.

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I was able to identify it with my Lichens of the North Woods book.

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It’s a Smooth Axil-bristle Lichen (Myelochroa galbina).

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The size of the fruiting bodies varied considerably. It looks as if the cups opened, and a thin “sheet” of spores flaked off.

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It was quite a variable lichen.

A New Lichen

One of my lichen books calls these blister lichens. The other one calls them star rosette lichens.

Their scientific name is Physcia stellaris.

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Black is the most common blister lichen I find here in southern Illinois.

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Some blister lichens have brown discs,

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and others have green.

The discs are called apothecia and are where the spores are produced.

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Then I found a blister lichen with gray discs in the backyard yesterday.

Now I wonder what other colors that I might find?