Hypoxylon sp ??

[kiltoncomp]

this was found today on a felled sycamore trunk, first thoughts were Hypoxylon fragiforme, but on another thread recently it was stated that these are found usually only on beech , could this be another Hypoxylon sp ??

also in pics 2 & 3 there are a lot of pinhead sized red dots, could this be a parasitic fungi??

[KeenTeen17]

I think the red dots are just the young scales of the hypoxylon. they look like H. fragiforme but not sure about the acer though

[leifus]

Originally Posted by KeenTeen17

I think the red dots are just the young scales of the hypoxylon. they look like H. fragiforme but not sure about the acer though

yeah that for me tooo (:

[mollisia]

Hallo,

the red dots are NOT nothing, they are Nectria episphaeria. A very common, but usually overlooked Nectria, which always grows on Pyrenomycetes. It is probably most often seen on Diatrype stigma, but for the reason that on such flat and black fruitbodies the red dots are more easy visible then on other coloured one. If you look in early spring to early summer on stixcks with Diatrye stigma, you will often find this one and also a similar small, but whitish cushion-like ascomycete with a somewhat powdery surface (lens!) This is Polydesmia pruinosa, also confined to old pyrenomycetes and very common.

best regards,
Andreas

P.S.: The Hypoxylon has to be microscoped to see whether it has small spores (howeianum) or bigger ones (fragiforme). It should be the first one, but one never knows for sure ...

[FungiJohn]

Originally Posted by mollisia

Hallo,

the red dots are NOT nothing, they are Nectria episphaeria. A very common, but usually overlooked Nectria, which always grows on Pyrenomycetes. It is probably most often seen on Diatrype stigma, but for the reason that on such flat and black fruitbodies the red dots are more easy visible then on other coloured one. If you look in early spring to early summer on stixcks with Diatrye stigma, you will often find this one and also a similar small, but whitish cushion-like ascomycete with a somewhat powdery surface (lens!) This is Polydesmia pruinosa, also confined to old pyrenomycetes and very common.

best regards,
Andreas

P.S.: The Hypoxylon has to be microscoped to see whether it has small spores (howeianum) or bigger ones (fragiforme). It should be the first one, but one never knows for sure ...

and probably very much overlooked in Clumber too Andreas .. I can't find a record Thanks again for the very useful information.

Was it found at Clumber Brian?

John

[kiltoncomp]

Originally Posted by mollisia

Hallo,

the red dots are NOT nothing, they are Nectria episphaeria. A very common, but usually overlooked Nectria, which always grows on Pyrenomycetes. It is probably most often seen on Diatrype stigma, but for the reason that on such flat and black fruitbodies the red dots are more easy visible then on other coloured one. If you look in early spring to early summer on stixcks with Diatrye stigma, you will often find this one and also a similar small, but whitish cushion-like ascomycete with a somewhat powdery surface (lens!) This is Polydesmia pruinosa, also confined to old pyrenomycetes and very common.

best regards,
Andreas

P.S.: The Hypoxylon has to be microscoped to see whether it has small spores (howeianum) or bigger ones (fragiforme). It should be the first one, but one never knows for sure ...

many thanks for that Andreas, i was pretty sure that the red dots were not part of the Hypoxylon, but did not have a clue as to what they actually were,

Brian,

[kiltoncomp]

Originally Posted by FungiJohn

and probably very much overlooked in Clumber too Andreas .. I can't find a record Thanks again for the very useful information.

Was it found at Clumber Brian?

John

Hello John, unfortunately they were not found in clumber, but at Edwinstowe
cemetary(well, just outside the fence) on some felled sycamore trunks,

Brian

[FungiJohn]

Originally Posted by kiltoncomp

Hello John, unfortunately they were not found in clumber, but at Edwinstowe
cemetary(well, just outside the fence) on some felled sycamore trunks,

Brian

Thanks Brian. I'll pass the information on to the Notts recorders.

John

[kiltoncomp]

Originally Posted by FungiJohn

Thanks Brian. I'll pass the information on to the Notts recorders.

John

thanks John,
its a pity i did not find this at Clumber, as it means i've missed my 5 miniutes of fame by having a species that "the stig" had not found at Clumber

[FungiJohn]

Originally Posted by kiltoncomp

thanks John,
its a pity i did not find this at Clumber, as it means i've missed my 5 miniutes of fame by having a species that "the stig" had not found at Clumber

I'm sure you will find one Brian ... and I'll be the first to congratulate you ... and make it known on the records too .. I promise

The Stig ... I do like that