Keizer's Fungi Q & A.

[Fungus]

The first two pictures are of a small white bracket fungi. It was growing on a Hazel stub that had been cut 3 years previously. We had heavy rainfall the week prior to taking the picture. The second pair of pictures are of a similar bracket on a dead ash limb that had dropped. The last 3 pictures were taken at the base of an ill cherry tree measuring aprox 18 inch dbh. It has since fallen over but is still growing. Any ideas?

 

Hi Matt,

 

The first two (or three ?) photo's probably show Anthrodiella semisupina, which has as a field identification characteristic, that you can not bite through the bracket with your front teeth.

The following three photo's show the saprotrophic Psilocybe (= Hypholoma) fascicularis, of which the mycelium produces organohalogens (poly-aromatic hydrocarbons) to decompose the wood with.

Edited May 3, 2011 by Fungus

[David Humphries]

Good evening Gerrit,

 

wanted to run this one past you.

 

An untypical formation that has puzzled us a bit.

 

I went up the Oak to get a closer look & to take a sample so I could send down to Martin Ainsworth at the Jodrel lab at Kew.

 

It came back as unconclusive due to not enough reproductive material in evidence.

 

I post a close up of the bracket & you can see more shots of it by opening up the red link

 

The Lab stumper

 

many thanks

 

 

David

 

 

.

[Fungus]

An untypical formation that has puzzled us a bit.

I went up the Oak to get a closer look & to take a sample so I could send down to Martin Ainsworth at the Jodrel lab at Kew.

It came back as unconclusive due to not enough reproductive material in evidence.

 

David,

No need to send a sample to Kew, this is a (partially) sterile "tuber", i.e. the typical form of emergency reproduction of Daedalea quercina, as it is sometimes seen on Quercus robur, but more often is documented from Q. rubra.

A warning : the mycelium fruits in this deformed and half to complete sterile way once the substrate, the heartwood of the tree, has completely been brown rotted and there is to little "nourishment" left to produce a normal fertile perennial bracket. Especially at great hight affected Q. rubra can be very dangerous.

I'll attach one of my photo's of the phenomenon as an illustration.

Edited May 3, 2011 by Fungus

[David Humphries]

again, very interesting.

 

thanks for the info & example

 

 

 

.

[Tony Croft aka hamadryad]

A Yellow Pluerotus sp on sycamore that I have only seen once and never identified.

A Pholiota? or is it a rustgill junonius? x 2 images

and a dark almost nigra fungi growing in grass in mixed woodland (pine/seqioua/broadleaf)

 

Any help here is appreciated:thumbup:

 

 

 

[Bundle 2]

Hey..Great thread. Welcome Gerrit. We owe a debt of gratitude to your magnanimous offer . Just dont let us take advantage of you !

Ive not been on forum for a bit. I turn my back and Arbtalk delivers ..again ! Good work.

 

Tim

[Fungus]

1.A Yellow Pluerotus sp on sycamore that I have only seen once and never identified.

2. A Pholiota? or is it a rustgill junonius? x 2 images

3. and a dark almost nigra fungi growing in grass in mixed woodland (pine/seqioua/broadleaf)

 

Tony,

1. Probably an "escape" from a nursery of Pleutotus species like P. ostreatus fm. Florida, of which the mycelium does not need a frostbite to fruit, or P. citrinopileatus, both "created" and cultivated for the human food chain.

2. Gymnopilus sapineus (= G. penetrans).

3. Hard to say without knowing the colour of the spores and whether the stem has a bulbous base. Could f.i. be a Lepiota or perhaps an Inocybe.

[Tony Croft aka hamadryad]

Tony,

1. Probably an "escape" from a nursery of Pleutotus species like P. ostreatus fm. Florida, of which the mycelium does not need a frostbite to fruit, or P. citrinopileatus, both "created" and cultivated for the human food chain.

2. Gymnopilus sapineus (= G. penetrans).

3. Hard to say without knowing the colour of the spores and whether the stem has a bulbous base. Could f.i. be a Lepiota or perhaps an Inocybe.

 

I had a feeling it was one of the rustgills:thumbup1:

 

 

 

thank you

[Tony Croft aka hamadryad]

Im going to cry if you think this is mis identified!

 

 

 

 

[Fungus]

Im going to cry if you think this is mis identified!

 

Tony,

A bit more info might be helpful : annual/perennial, soft/brittle or tough tissue, smell, tree species, and anything else you might think of to keep you (and me) from crying .