dark brown apothecia whose paraphyses have expanded septate heads

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dark brown apothecia whose paraphyses have expanded septate heads

Watt John, 17-10-2023 13:04

These asci, from mixed woodland in western england are 2-3 mm in diameter margin slightly inrolled, very short stalk. Asci are J-ve, and smooth elipsoid biguttulate a'spores measure 8 mc x 4. The 80 mc long paraphyses are very striking with their biseptate heads and very slender stalks. These characters should make it recognisable but can't see the like in B&K or Peter Thompson's Asco book. Any ideas?

Hans-Otto Baral, 17-10-2023 17:34

Re : dark brown apothecia whose paraphyses have expanded septate heads

This is Diplocarpa bloxamii. The colours are very false in the macro.

There are not many records and since I have a manuscript about it, I would like to include this with its coordinates. Could you tell me?

Was it a stump or log or branch?

Watt John, 17-10-2023 17:56

Re : dark brown apothecia whose paraphyses have expanded septate heads

Many thanks indeed Otto, and thanks for your interest.

I agree that the Dinolite image renders the fungus in too light a shade, though I did already tweak it somewhat to improve it from the initial.

This was found by a 7 year old who was also with us on our NW Fungus Group foray, on Sunday 15th October; in a very rotten stump, probably Betula or Quercus.

The site is a Lancashire Wildlife Trust Reserve called Mere Sands Wood north of Liverpool.
The UK GR is SD 4470 1570, which is equivalent to Long. - 6.953; lat. 49.936.

I had kept some of the specimen for the time being. ..... ?

Kind regards,
John Watt

Hans-Otto Baral, 17-10-2023 21:39

Re : dark brown apothecia whose paraphyses have expanded septate heads

Thanks! Could you please tell me the name of the finder?

The coordinates are not good, the should be around 53° 38' 08'' N / 2° 50' 10'' W.

Do you have a smal piece of the wood? Quercus and Betula are easy to distinguish (large vs. small-pored). Is it surely wood or bark?

I just noticed that you have also the anamorph between the apothecia, which is frequently the case.

Watt John, 18-10-2023 21:14

Re : dark brown apothecia whose paraphyses have expanded septate heads

Hello Hans-Otto,

Sorry, I used the Brit Geol converter but forgot that on our usual OS maps the first digit is not shown in large type, so you're quite right with your Long and Latitude. Instead of that first numeral, the OS National Grid systems divides the country up into 100km grids which each have two identifying letters (SD in this case) to complement that first numeral.

I have had a good look at the fragment of wood and it does look like Quercus (robur likely).
The finder was young James Roberts (8 yr) .

Thanks also for pointing out the Anamorph. I can have a look at that next time the microscope is out.

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