UK Ganoderma complex

[Kveldssanger]

When I have the time!

[Jake Andrews]

When I have the time!

 

 

Perhaps you could start a thread on spore microscopy?

 

 

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[Marc]

I did a brief inspection of a site and came across this at first glance thought it was inonotus, now thinking gano.

Was on a Sorbus.

[David Humphries]

Confirmed Ganoderma australe on an impossibly ivy-clad but still living larch (Larix decidua). First record in the country, is my understanding. Found at Mote Park in Maidstone. Cuticle consistently over 1mm thick and spore over 10 microns in length - again, consistently.

Another species to add to the list that this fungus inhabits.

 

 

Got me interested enough to go look at 'all' the FRDBI records for australe on gymnosperms (had lots of time last night as I played football at the weekend for the first time in a very long time, so was at home nursing my bruised ego and bones)

 

Andy O states in his "Southern Bracket or Artist’s Conk?" article that he didn't believe there were many/or any records of australe on conifers, I had a look through the 53 pages and found 40 or so listed as being associating with coniferous/gymnosperm species.

 

The majority of these appear to be on various Pine species but there are also records of;

2 on Douglas fir, 2 on Norway spruce, 1 on Western hemlock, 1 on Wellingtonia, 1 on Yew & also 1 on Larch on page 16

 

40+ of 5381 is obviously a very small overall percentage but its still a fairly significant number.

 

I wonder if the perceived low numbers are indicative of field mycologists perhaps not getting out in monocultural forests.

 

 

 

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[Kveldssanger]

Got me interested enough to go look at 'all' the FRDBI records for australe on gymnosperms (had lots of time last night as I played football at the weekend for the first time in a very long time, so was at home nursing my bruised ego and bones)

 

Andy O states in his "Southern Bracket or Artist’s Conk?" article that he didn't believe there were many/or any records of australe on conifers, I had a look through the 53 pages and found 40 or so listed as being associating with coniferous/gymnosperm species.

 

The majority of these appear to be on various Pine species but there are also records of;

2 on Douglas fir, 2 on Norway spruce, 1 on Western hemlock, 1 on Wellingtonia, 1 on Yew & also 1 on Larch on page 16

 

40+ of 5381 is obviously a very small overall percentage but its still a fairly significant number.

 

I wonder if the perceived low numbers are indicative of field mycologists perhaps not getting out in monocultural forests.

 

 

 

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Wow your legs must be hurting if you went through that many records! You can search by host species / genus, which can make it easier - sometimes...

 

40 or so is quite significant, as you say. Scaling that up, as these finds are probably random ones from easier-to-access locations, gymnosperms are perhaps not so infrequent when it comes to being a viable host. Certainly, it's relative when compared to finding Gano australe on angiosperms (which we do in diabolical abundance), though the converse is similarly true for Heterobasidion annosum or Phaeolus schweinitzii.

 

It can be a case often of find and ye shall seek and, as you allude to, maybe people don't go into pine stands with the intention of finding Gano australe. I know I'll keep an eye out forever more, on this association! Though this one was sheer luck that I found it. Spotting a white horizontal line at the base of a tree is almost a conclusive sign of a Ganoderma bracket!

[Kveldssanger]

I did a brief inspection of a site and came across this at first glance thought it was inonotus, now thinking gano.

Was on a Sorbus.

 

I'd agree with Ganoderma - probably Ganoderma australe.

[Marc]

I'd agree with Ganoderma - probably Ganoderma australe.

 

Hmm I was thinking resinaceum, kicking myself now for not taking a much closer look tree displayed good vitality with no issues of note although within a School and high target area confident it's not an immediate concern the tree is not particularly large although a nice example, I am also not the contractorer responsabile for duty of care and tree audits on site so not my place at this time.

 

Not dealt with Ganoderma on a Sorbus before without looking into my reference books what are the thoughts with this species? Is it considered particularly aggressive? Most of the time I leave alone after a through inspection.

[David Humphries]

We've been watching a relatively unusual (height wise) fruiting of this Ganoderma approx 8m up the trunk on this sessile oak for a few years.

 

 

Originally thought that it was Fomes fomentarius (from a ground observation perspective) but on close inspection after watching it mature, we found it to be Ganoderma and now believe it to be australe.

 

 

Although no microscopy has been carried to determine spore size, the morphological features and the associated cavitation behind the fruit body (determined by Resistograph) strongly suggest the wood volumes have been significantly colonised by G. australe.

 

 

 

Some height reduction will be carried out to reduce the 'strain' on the trunk by limiting the impact of wind load upon the canopy

 

 

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Edited April 5, 2017 by David Humphries

[sloth]

I've never come across any gano fruiting at that sort of height. Does the circle show the location, or is it a hoola hoop?

[David Humphries]

Location

 

 

 

 

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