Friday, 27 August 2010

#47 Ganoderma australe

Rainforest of Barrington Tops National Park provides ideal habitat for countless fungi species. Large woody bracket fungi jutting out from tree trunks are common. Ganoderma australe is one of the largest.

A Ganoderma australe fungi fruit body 300mm wide.
Notice the new layer under the old, cracking layer.


Ganoderma australe from family Ganodermataceae was previously known as G. applanatum. Fruit bodies can reach 600mm across on living trees causing white rot which will eventually kill the tree. It can live for several more years on the dead stump. It is found near the base of trees, often at the site of an old wound.

A new fertile layer is added each year. The minutely pored white undersurface readily bruises dark red-brown when scratched or bruised. Messages written on the white pore layer become permanent when the fungus dries, consequently it is sometimes referred to as 'Artist's Conk'. Spore print is brown.

This wood-decaying fungus is found in wet sclerophyll forest and rainforest on native or exotic trees. The shelf-like fruit bodies are generally fan or hoof-shaped, dry, brown, and often cracked. The brown bracket often has a white rounded margin.

Note the radial growth zones, and the fine cracks


This Ganoderma australe fruit body in the rainforest of Barrington Tops National Park on a living tree is about 300mm wide, and 50mm deep.


The white pored fertile undersurface immediately
bruised dark red-brown when I scratched it.


White rounded margin and radial colour zones
of fresh Ganoderma australe fruit body


And old, softened Ganoderma australe fungus fallen.


The discarded fungus has dark brown undersurface


Fresh Ganoderma australe with scratched pored surface


My sightings of Ganoderma australe

[This will be updated with new sightings]

Barrington Tops National Park, NSW - on living and dead rainforest trees, Nov 07, Jul 10.

Brunkerville, NSW - on dead wood Jun 2011.

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Woody polypores of the Ganodermataceae family have been used in Asian folk medicine for centuries. Collectively, the Ganoderma are being investigated for a variety of potential therapeutic benefits.

There is apparently potential for Ganoderma species in bioremediation. Bioremediation can be defined as any process that uses micro-organisms, fungi, green plants or their enzymes to return the natural environmental altered by contaminants to its original condition, eg: clean up of oil spills.

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Here is an excellent example of a Ganoderma australe bracket fungus with many, many layers added:

7 comments:

Le Loup said...

Excellent. I would love to find this fungus and see if it can be used as tinder.
Good post, thank you.

Gaye from the Hunter said...

Hello Le Loup,

Next time I go to the Barringtons I'll collect one and see how it burns.

Laetiporus portentosus apparently burns slowly so should make good tinder,and it should be available in your area. I saw some today, and on my way back past them in a couple of days time, I intend to collect one and set it alight to test out the potential for tinder.

http://australianfungi.blogspot.com/2007/09/26-laetiporus-portentosus.html

Cheers,
Gaye

Anonymous said...

Another nice posting gaye, although fungi season has pretty much ended here in Western Australia i think, come today, the first day of spring, september 1st, will have to look forward to next year now. Should make some fun hunting come june next year, seems to be the most prolific month here in WA for fungi hunting, i guess also because it's the wettest, they seem to spawn everywhere.

- Cheers -
- Trent -

Gaye from the Hunter said...

Hello Trent,

yes, fungi are really slowing down here too, despite good rain. But I'm always hopeful whenever I'm out and about. Surprisingly, a few Coprinus species have been popping up. Puffballs seem to be the most prolific fungi around at this time of the year where I've been, and they're always interesting (and difficult to identify unless they have readily recognisable features.

I have missed my Tuesday fungi post this week, due to lack of time, but hope to get one up tomorrow.

With the outstanding wattles in WA, you might enjoy my Wattle Day journal post:

http://huntervalleyjournal.blogspot.com/2010/09/national-wattle-day.html

I'll be over in WA for a couple of weeks in November, and will be looking forward to late flowering native flora.

Cheers,
Gaye

Anonymous said...

Hi!

Just wanted to inform you that you got the species wrong, Ganoderma australe and Ganoderma applanatum is two different species of the same genus.

Ganoderma australe is formerly known as Ganoderma adspersum.

Best regards.

PS. Nice pictures though.

Gaye said...

Thank you for your comment regarding misidentification. I'll check into it.

Regards,
Gaye

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