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Armillaria ostoyae

Posted by
Johan Dierckx (Wijnegem, Belgium) on 6 December 2010 in Abstract & Conceptual and Portfolio.

Armillaria ostoyae (Sombere honingzwam (BE) / Shoestring Rot (EN) / Dunkle Hallimasch (DE) / Armillaire d'Ostoya (FR)) is a fungus in the Physalacriaceae family.
It is a really common species and during my research for info on the net i found this:

"The largest living fungus may be a honey fungus of the species Armillaria ostoyae. A mushroom of this type in the Malheur National Forest in the Blue Mountains of eastern Oregon, U.S. was found to be the largest fungal colony in the world, spanning 8.9 km2 (2,200 acres) of area. This organism is estimated to be 2400 years old. The fungus was written about in the April 2003 issue of the Canadian Journal of Forest Research. While an accurate estimate has not been made, the total mass of the colony may be as much as 605 tons. If this colony is considered a single organism, then it is the largest known organism in the world by area, and rivals the aspen grove "Pando" as the known organism with the highest living biomass. It is not known, however, whether it is a single organism with all parts of the mycelium connected." "In Armillaria ostoyae each individual mushroom (the fruiting body, similar to a flower on a plant) has only a 5 cm stipe, and a pileus up to 12.5 cm across." http://en.wikipedia.org/wiki/Largest_organisms

For me the structure on the pileus with the melting morning-frost on top of it was worthy enough to make this abstract.

Image: Schoten (BE) - 12/10/2010

Canon EOS 400D 1/250 second F/8.0 ISO 200 150 mm

© Johan Dierckx

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Florence from Paris, France

Great details, colors make me think of honey somehow.

6 Dec 2010 10:40am

Canon EOS 400D
1/250 second
ISO 200
150 mm