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18-07-2025 23:03

Help with some conidia.
Josep Torres Josep Torres

Hello.Fruitings between 51 and 130 microns in tota

17-07-2025 11:55

Una para ID 833
Castillo Joseba Castillo Joseba

De ayer en bosque de hayas y abetos, en tieraEjemp

16-07-2025 17:34

Sphaerulina cornicola versus Septoria cornina
Bernard Declercq Bernard Declercq

Hello,I have trouble distinguishing above mention

14-07-2025 11:20

Une hélotiale sur Sphagnum palustre
Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

15-07-2025 13:27

literature request
Angel Pintos Angel Pintos

Hello, does anyone have access to the following ar

16-01-2023 21:31

Troposporella fumosum => Troposporella monilipes
Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55

Hypoxylon cf ticinense
Yanick BOULANGER

BonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17

Jackrogersella minutella VS Hypoxylon cohaerens var. microsporum
Yanick BOULANGER

BonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52

Olla aff. millepunctata (croziers +) on Rubus idaeus
Gernot Friebes

Hi,I wanted to share this collection on Rubus idae

14-07-2025 13:37

Rutstroemia ulmariae(?) on Saxifraga rotundifolia
Gernot Friebes

Hi,do you think this collection could be R. ulmari

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asco on Angelica sylvestris
Franz Berger, 27-05-2020 20:00
Franz BergerDear ascofreaks!  
I  cant even find a correct genus:
Apo 0,7 mm, On base of old dead stem of Angelica sylvestris in a bog. Foto in moist state, dry the hairy white rim distinctly  more prominent and the black disc (when dry!) sunken and due of the retraction more of the  hairy dark grey exciple visible.
epihymenium grainy black, grains soluble in KOH, hymenium 60 µm, hyalin insperse, exciple paraplect., outside covered with short club shaped "hairs".
asci cylindrical, 60x 5-6 µm, unitunicate, 8 spores biseriate,  tip J neg., spores hyaline, aseptate, straight to slightly bent, 17-19x3 µm, obtuse, with small oil droplets only in  both tips.
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Hans-Otto Baral, 27-05-2020 20:07
Hans-Otto Baral
Re : asco on Angelica sylvestris
Dear Franz

this is not easy without microphotos. Did you see the paraphyses? Do they contain refractive contents? From this it depends whether it is a Mollisia or Pyrenopeziza.

When already dried, this will not be as easy as in the fresh state.

The spores are rather large, so it is not the common P. atrata.

Zotto
Franz Berger, 27-05-2020 20:27
Franz Berger
Re : asco on Angelica sylvestris
AHA,  not the paraphyses  are inspers, but the overlaying asci in not perfect  hand-cut section with  their ascospores are containing the refractive droplets.
Hans-Otto Baral, 27-05-2020 21:06
Hans-Otto Baral
Re : asco on Angelica sylvestris
Hmm, I cannot imagine what you saw :-( You do not have the possibility for microphotos?
Franz Berger, 28-05-2020 09:22
Franz Berger
Re : asco on Angelica sylvestris
no real paraphyses visible , only empty asci? 
the insperse hymenium is caused by dense asci and the oildropletes of ascospores and not by paraphyses
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Hans-Otto Baral, 28-05-2020 10:01
Hans-Otto Baral
Re : asco on Angelica sylvestris
This is now very helpful. The greybrown excipulum of angular cells clearly points to a Pyrenopeziza, also the long-conical ascus apices. Paraphyses are well visible on your 2nd pic but they are dead - impossible anymore to see the relevant contents.

Interesting species, not easy to ideintify. Species on dicot stems exist a lot, many are host specific, others not. You can look in my subfolder "Pyrenopeziza on herbaceous dicots" in folder Ploettnerulaceae of Helotiales. I should insert more spore sizes to the folder names to a more rapid search. P. carduorum is a species with similar spores but perhaps only on Asteraceae.
Franz Berger, 28-05-2020 10:10
Franz Berger
Re : asco on Angelica sylvestris
Thank You very much for Your help!