Fungus on ash

[jacquemontii]

Can anyone please help identify this fungus, found at the base of a mature ash. Im thinking it might be Ganoderma adspersum?

[Chris at eden]

Could be. The green tinge may also suggest Perenniporia fraxinea

[Andrew Gale]

The green is more in keeping with Rigidoporous ulmarius isn't it?

[Chris at eden]

The green is more in keeping with Rigidoporous ulmarius isn't it?

 

Hi Andrew,

 

You do get the moss on Rigidoporus ulmarius but I've not seen this fungus growing on ash. Historically it grew on elm hence the name but in my experience it now usually grows on sycamore. Perreniporia fraxinea is more associated with ash (again hence the name) and still has the moss. That was my thinking. Its a guess to be fair as you can't tell for sure from the photo, or at least I cant. Another one with moss would be Pseudotrametes gibbosa but its not that.

 

You thinking Rigidoporus then? What are your experiences in terms of the associated species of both.

 

Cheers,

[sean]

take a slice and look at the colour of the tubes etc

[Andrew Gale]

Hi Chris; playing a bit of devils advocate a little bit as they both can be confused for one another.

 

P. fraxinea, in my experience, tends to look a little more yellow whist R. ulmarius a whiter colour on the leading edge, I recently found R. ulmarius on a Horse chestnut so not strictly confined to Ulmus.

 

But hey, I'm open to suggestions; as Sean says, take a slice and look at the spore tubes.

[David Humphries]

On the debate regarding the two similar genus....

 

Rigidoporus ulmarius - David Humphries’s Fungi Directory - Arbtalk.co.uk | Discussion Forum for Arborists

 

British Fungi - record details

 

 

 

Perenniporia fraxinea - David Humphries’s Fungi Directory - Arbtalk.co.uk | Discussion Forum for Arborists

 

British Fungi - record details

 

 

A relatively wide host range for both outside of the Horse chestnut, Elm, Ash usual suspects

 

there are similarities in morphology and tissue, but enough differences to be fairly confident in the field

 

http://arbtalk.co.uk/forum/fungi-pictures/6233-perenniporia-fraxinea.html

 

http://arbtalk.co.uk/forum/fungi-pictures/6205-rigidoporus-ulmarius.html

 

hope this helps.......

 

.

[Tony Croft aka hamadryad]

its a ganoderma australe!

[Andrew Gale]

Hi Tony

 

What makes you say G. australe? Was it the general size and shape or is there something else lurking?

[Tony Croft aka hamadryad]

Look at the panicky bulbs above main body, its been starved for some time