19-04-2026 21:23
Steve ClementsBonjour, I found this anamorphic fungus on old pl
19-04-2026 20:46
Steve Clements1 mm diameter approx spherical conidiophores on pl
12-04-2026 17:56
Hardware Tony
Found on dead stems in February earlier this year
17-04-2026 19:16
Enrique Rubio
Hi to everybodyI would appreciate any assistance r
14-04-2026 05:32
Ethan CrensonHi all, A few weeks back a friend pointed out som
17-04-2026 15:14
Bruno Coué
Bonjour.Récoltes du 16/04/2026, sur feuilles mort
12-04-2026 15:52
Gernot FriebesHi,I'm looking for help with this anamorph collect
14-04-2026 21:52
Gernot FriebesHi,found on dead leaves of Carex elata. Conidia: 4
16-04-2026 22:09
Buckwheat PeteHello, I'd like to ask about this older specimen:
15-04-2026 19:33
Fátima Durán ManzanequeHi!! I need help, I found this Ascomycete but I d
Sub-millmeter whitish apothecia on subalpine humus
Edvin Johannesen,
02-09-2021 13:49
These tiny apothecia (less than 1 mm) were found in a moist depression under Salix in a mountain region in Central Norway. The substrate is nearly-decomposed plant material. The macro photos are of fresh specimen. Unfortunately, it took som time (in the fridge) before I was able to do microscopy, so deliquescence has started. I was however able to find mature asci and spores (photos in water). Spores measure typically 11x4 microns. Multiple guttules (or spore bodies?) are seen towards the poles. Asci IKI- as far as I can see. Is it possible to ID (at least to genus) from this limited information?
Thanks.
Mirek Gryc,
02-09-2021 16:08
Re : Sub-millmeter whitish apothecia on subalpine humus
Hi Edvin
Pezoloma?
Mirek
Edvin Johannesen,
02-09-2021 20:23
Re : Sub-millmeter whitish apothecia on subalpine humus
That's an interesting proposal, Mirek. A genus I have not encountered before. I will check further. Sad to say, the specimen is now in a poor condition. Thanks!
Hans-Otto Baral,
02-09-2021 22:02
Re : Sub-millmeter whitish apothecia on subalpine humus
LBs are for sure in the spores (you can test it with KOH, they resist). But how are the paraphyses? are they still alive and do they contain VBs?
Edvin Johannesen,
03-09-2021 14:34
Re : Sub-millmeter whitish apothecia on subalpine humus
Thanks, Zotto. I was happy to find one apo apparently in good shape, and have studied it in water, KOH and Lugol. Some additional/corrected information.
1. The spore LBs resist KOH
2. Paraphyses contain VBs. These disappear in KOH and the paraphyses also become thinner in KOH.
3. Asci vary in being uni- or biseriate. Also the number of spores seem to vary, the normal being 8 (uni- or bi). In some asci the spores spread througout the asci, in other they tend to aggregate towards the apex.
4. Ascus apparatus is hemiamyloid (brownish in Lugol).
New photos are all in water (except the last one, in Lugol). I had to use phase contrast to get a clear image of the paraphyse VBs.
Does this help?
Hans-Otto Baral,
03-09-2021 22:10
Re : Sub-millmeter whitish apothecia on subalpine humus
Interesting! Could be a Pezoloma indeed. But I see no VBs. Your phase photo seems to refer to dead paraphyses. In water under bright field there are no apparent contents.
Edvin Johannesen,
03-09-2021 23:43
Re : Sub-millmeter whitish apothecia on subalpine humus
OK, I learn every day :)
Mirek Gryc,
04-09-2021 07:02
Re : Sub-millmeter whitish apothecia on subalpine humus
Hi
In fact ascomata already heavily damaged but I think the pictures show the contents paraphyses.
I allowed Edvin's photo correction.
Mirek
In fact ascomata already heavily damaged but I think the pictures show the contents paraphyses.
I allowed Edvin's photo correction.
Mirek
