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Monday, February 15, 2010

Spanish Moss or Old Man's Beard?

The following photos look like they could have been taken in the Louisiana bayou country, the swampy areas where Spanish moss hangs from the trees. But they were actually taken right across Oak Lane from our house. Our neighbors have pasture land for horses and there are many oak trees in their pasture, covered with what looks like Spanish moss.
It's actually called "Usnea," though it is often mistaken for Spanish Moss. It's formed by the symbiosis of a fungus and an alga.
It is commonly called Old Man's Beard, Beard Lichen or Tree Moss.
All overgrown by cunning moss,
All interspersed with weeds,
The mighty oak trees of Oak Lane
Watch over all their steeds.
Recent rain and winds knocked down a large piece of the hanging lichen, so I picked it up and took it home to get some close-ups of it, it was so unusual looking.
It felt soft, spongy and rubbery.

I was amazed at the intricacy and laciness of it.
Nature's beautiful soft, green lace.

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13 comments:

L.C.T. said...

Beautiful. I love how extravagent nature can be :)

Ruth's Photo Blog said...

Wow,that stuff looks really different up close.It almost looks like a net of some sort.Very interesting.
Blessings,Ruth

Brit Gal Sarah said...

You're right I would have associated that with a swamp area! It really is beautiful and lace like, although just a touch creepy too.

Wolynski said...

All that moss is certainly very photogenic, but is it healthy for the trees?
I'd be afraid to take it home, but it does make for really interesting photos - lovely.

Pat said...

Wolynski: No, the usnea (lichen) does not damage the tree. It has no vascular system; it absorbs moisture and nutrients from the air. I googled "Does usnea kill trees?" and found out that info. Handling it is not harmful--it's like handling any lichen growing on a rock.

Lara Neusiedler said...

wow, amazing! nature's creations are indeed spectacular!

maryt/theteach said...

Pat, I've never seen lichen up close! :)

George said...

I had not heard of Old Man's Beard before, but it is very interesting. Your closeups are fascinating and it really does look similar to lace.

Pat said...

George: I googled Lace Lichen, and voila! There were photos that looked just like mine. So its real (common) name is "Lace Lichen" and it only grows in the Pacific northwest. Lichen is a symbiotic combination of fungus and algae. Biologists speculate that it developed the holes to survive the strong winds that blow inland from the Pacific.

Pat said...

Wolynski: Some cultures have even used lichen for food, so it's definitely not poisonous, except for wolf lichen.

Carolyn Ford said...

I saw so much Spanish moss in Florida! It makes for some amazing scenes and photographs...humidity is its best friend!

Lawstude said...

i think that would be perfect as potting decorations although i am not sure about its texture. thanks for sharing.

Michelle said...

That's actually really cool and quite beautiful. But I suppose I wouldn't want it growing on my house -- it isn't THAT beautiful :)