365 Urban Species. #081: Artist's Conk
Mar. 22nd, 2006 11:20 pm
Urban species #081: Artist's conk Ganoderma applanatum
Most shelf- or bracket-shaped mushrooms (those that grow directly from wood without stalks) deteriorate within a few weeks or months. Artist's conk actually gets bigger. This is a rare example of a perennial mushroom: the same fruiting body persists for years, building a new spore-bearing surface with each growing season. In ideal conditions, an artist's conk can grow to be quite large, up to a foot or more in diameter. The bracket is exceptionally sturdy for a mushroom as well, so that it can support its ever-growing weight. Artist's conk is as hard or harder than the wood it grows from. This fungus is very widespread, found on all continents, on many different kinds of wood.
The common name of this mushroom comes from its usefulness as a kind of etching canvas. The fresh, white, spore-producing underside can be scratched away to reveal the dark brown color underneath. Especially skilled artists can use techniques to create half-tones.


Drawings on artist's conk (often called "wood fungus" in folk art circles):
http://www.bostonmycologicalclub.org/Checklist2001/Ganoderma_applanatum_2001-09-08_a.jpg
http://www.sunnews.com/images/2005/0106/BR010655C.jpg
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Date: 2006-03-23 09:39 am (UTC)just wow!
found on all continents, hmm? MUST get one!
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Date: 2006-03-23 10:49 am (UTC)no subject
Date: 2006-03-23 11:07 am (UTC)no subject
Date: 2006-03-23 12:30 pm (UTC)no subject
Date: 2006-03-23 08:28 pm (UTC)Ganoderma spp. are also a treasure trove of insects. If you check underneath on the spore bearing surface, you can find a variety of fungus-associated insects. Also if you crack them open, you can find even more. I can't walk in the woods anymore without stopping a few times to take a peek under some fungi.