Possible Rutstroemia species?

Lancashire Lad · #1 (**permalink**) 13-09-2009, 04:54 PM

Found today.
Not sure exactly what type of tree "fruit" it is growing on (but there were several Turkey Oak / Beech / Alder" nearby.

Possibly a Rutstroemia species but can't tie it down for sure unless anyone is able to recognise the specific substrate. Cup diameter about 10mm.

Any help with ID much appreciated.
Regards,
Mike.

Beamish · #2 (**permalink**) 13-09-2009, 06:16 PM

Hi Mike,

funny, I was dealing with a Rutstroemia too today that I found on Acorn cup yesterday. Yours is possibly R. echinophila that was found several times on cups of Quercus cerris (like yours seems to be?). But to be shure that deserves a microscopic view.

Cheers, Martin

Chris Yeates · #3 (**permalink**) 13-09-2009, 06:20 PM

Quote:

Originally Posted by Lancashire Lad

Found today.
Not sure exactly what type of tree "fruit" it is growing on (but there were several Turkey Oak / Beech / Alder" nearby.

Possibly a Rutstroemia species but can't tie it down for sure unless anyone is able to recognise the specific substrate. Cup diameter about 10mm.

Any help with ID much appreciated.
Regards,
Mike.

hi Mike

the host looks like fallen acorns/cupules of Quercus cerris (turkey oak)

in that case my first thought was Ciboria batschiana - though I'm not convinced; however I note that Lanzia echinophila has quite a few records on this host and that seems a likelier candidate - do you have the material?

cheers

Chris

Lancashire Lad · #4 (**permalink**) 13-09-2009, 07:06 PM

Thanks Beamish & Chris.

Browsing for images, and solely on what I've found, I'd say that Rutstroemia echinophilla does look like a contender.
Images for Ciboria batschiana & Lanzia echinophila all seem to show fruitbodies with longer stems, but I don't know if my specimen was typical or not.

Sorry Chris - no, I didn't collect the specimen.

Regards,
Mike.

Chris Yeates · #5 (**permalink**) 13-09-2009, 07:14 PM

Quote:

Originally Posted by Lancashire Lad

. . .
Images for Ciboria batschiana & Lanzia echinophila all seem to show fruitbodies with longer stems, but I don't know if my specimen was typical or not. . . .

stem length can be very variable with some of these fungi; if the substrate is buried amongst leaves etc then the stems are longer - you don't see this in the photo's on the websites - the fungi have been gardened a bit beforehand

cheers

Chris

Beamish · #6 (**permalink**) 13-09-2009, 07:19 PM

Hi,

I learned Lanzia echinophila is the current name of R.e. (according to Index fungorum). So we meet at this species.

Regards, Martin

Lancashire Lad · #7 (**permalink**) 13-09-2009, 07:25 PM

Thanks again Chris & Beamish.

(I take the point about factors affecting stem length Chris - mine was found just lying on the ground, so no need for stem elongation).

Lanzia/Rutstroemia echinophilla looks good.

Regards,
Mike.

fairplay · #8 (**permalink**) 13-09-2009, 07:33 PM

Which makes the new Collins book out of date already !

Beamish · #9 (**permalink**) 13-09-2009, 07:47 PM

Quote:

Originally Posted by fairplay

Which makes the new Collins book out of date already !

Names of species change very fast, concerning fungi. This is just a symptom of this really unexplored topic we are dealing with,

Regards, Martin

Chris Yeates · #10 (**permalink**) 15-09-2009, 01:14 PM

Quote:

Originally Posted by fairplay

Which makes the new Collins book out of date already !

naaah! Beamish is quite right - the fungus hasn't changed, only someone's idea of where to slot it (and that will probably change as long as there are mycologists

)

call it whichever name you find convenient - you can drive yourself mad chasing the 'latest' name sometimes . . .

Chris