02-05-2018 16:56
Blasco RafaelHola, parece que sea la propuesta? sobria madera d
01-05-2018 20:37
Angel PintosHello, I need help with this bitunicate apothecium
02-05-2018 17:44
Danny NewmanHello AscoFrance,This was found on fallen, decorti
01-05-2018 14:51
hannie wijersHello, I'd lilke some hep. At Peltigera didactyla
30-04-2018 22:42
Bernard CLESSEEn observant une croûte, prélevée la face infé
29-04-2018 21:26
Thorben HülsewigHi there,i found 2 days ago this Anamorph on Querc
29-04-2018 14:23
Thorben HülsewigHi there, i'm looking at this Article:"Harrington
28-04-2018 19:01
Blasco RafaelHola, les parece que sea Arhacnopeziza auratasobre
I am hoping for some advice about a discomycete I found on a moorland hill in Lancashire, England at c. 450m, on peat amongst bryophytes - mainly Ceratodon purpureus. I am out of my depth here because I usually study lichens, but I have considered Bryoscyphus, Discinella, Octospora and Ombrophila before finding myself at Roseodiscus formosus.
A rough description:
Apothecia pale pink, 2-5mm diameter with ± flat disc, tapering to a whitish stipe (overall height 3-4mm). Paraphyses c. 2µm wide, septate, not expanded toward their apices, sparsely branched. Asci c. 8µm wide (in KOH), 8-spored, with hemiamyloid apical ring (orange in IKI before treatment with KOH, blue after KOH), with croziers. Ascospores 0-1 septate, 11-18 x 3-4µm (in water), with lipid droplets.
I think my only reservation is that the paraphyses in water appear minutely granular, at least in the living state, but the contents more or less clear in KOH, apart from what looks like an occasional lipid droplet. Any words of wisdom will be gratefully received.
Best wishes
Nigel
https://www.researchgate.net/publication/278728929_Roseodiscus_formosus_spec_nov_-_ein_bryophiler_Pionier_mit_falschem_Namen
best regards
dirk
Many thanks for your speedy responses. All images except the first are in KOH where the paraphyses were more or less clear. I struggled to photograph what I observed but I've attached a cropped section of the first image (in IKI) and part of another image (in water) where I tried to capture the granular appearance. I examined the specimen the day after I collected it.
Dirk - yes, of course. Without your paper I wouldn't have got very far. Roseodiscus isn't covered in 'Microfungi on Miscellaneous Substrates' which was my first attempt to find a name. When I began to search for info about Discinella I soon found your paper. My German isn't good very good so I pasted sections into Google Translate. It is also referenced in the following page which mentions at least one British record. This might be the second record.
http://fungi.myspecies.info/taxonomy/term/9140/descriptions
All the best
Nigel
Thanks again for your help - hugely appreciated.
Nigel