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16-05-2024 07:34

unknown 15-05-24
Vasileios Kaounas Vasileios Kaounas

Found in forest with Abies cephalonica. Diameter 0

15-05-2024 17:26

Geopyxis sp.
Vasileios Kaounas Vasileios Kaounas

First time I find this season and in this habitat,

15-05-2024 10:54

Literature request
Viktorie Halasu Viktorie Halasu

Hello, would anyone have this paper please? I did

14-05-2024 19:48

Possible Hymenoscyphus menthae
B Shelbourne B Shelbourne

• Hymenoscyphus: Habitat, macro, spores, paraphy

10-05-2024 17:40

Nitschkia, no! It's a lichen
Anna Klos

Good afternoon, Thursday during an inventory we f

14-05-2024 09:19

Presentation about Orbilia
Hans-Otto Baral Hans-Otto Baral

Hi, I want to announce for next Sunday 17.00 middl

14-05-2024 21:43

Tubercularia vulgaris ?
Thierry Blondelle Thierry Blondelle

Bonjour,A côté de Hystérographium fraxini, ces

14-05-2024 09:50

On Populus
Yannick Mourgues Yannick Mourgues

Hi. Found on decorticated wod of Populus cf. alba

13-05-2024 12:48

Apiosporous pyrenomycete
Eduard Osieck

After eight years (*) I found the same apiosporous

11-05-2024 18:08

Possible Mollisia nervicola
B Shelbourne B Shelbourne

• Mollisia on tree leaves: On dead Quercus leave

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Pyrenopeziza ?
Maren Kamke, 06-05-2015 18:30
Maren KamkeHello everybody,
I found this Pyrenopeziza? species on Phalaris arundinacea last weekend.
Apothecia 0,5 mm in diameter with inrolled margin, whitish-hyalin, sessile.
Outer excipulum hyaline, textura angularis to textura globosa,
with difficult to identify, hyaline margincells, slightly clavate at the apex, up to 30 µm long.
Paraphyses simple, up to 2 µm wide at the apex without content. Asci with croziers 39-42 x 5 µm, IKl+ blue (Calycina-type), spores hyaline, clavate, oil 0-1, (9-11) 9,88 x 2,57 (2-3) µm.
Regards
Maren
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Lothar Krieglsteiner, 06-05-2015 19:54
Lothar Krieglsteiner
Re : Pyrenopeziza ?

Hello Maren,


I do not think this is a Pyrenopeziza. Unfortunately, the views of the paraphyses are rather blurred, but I suggest they contain vacuolar bodies. So, it could (should) be a Mollisia. Maybe, it could be M. hydrophila which has similar spores and appearance. But surely, more competent people will write there opinion.


Yours, Lothar

Maren Kamke, 06-05-2015 20:17
Maren Kamke
Re : Pyrenopeziza ?
Hello Lothar,
it was very difficult to get a clear picture of the paraphyses at all, this one is with 500x.
There maybe some vacuolar bodies present, but none refractive. I don't think it is M. hydrophila because there are no crystals in the medulla.
Regards
Maren
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Hans-Otto Baral, 07-05-2015 10:07
Hans-Otto Baral
Re : Pyrenopeziza ?
Hallo zusammen

I also think it is a Pyrenopeziza, the paraphysis contents are now clear.
On monocots I have nothing with such clavate spores, however.

I assume this is a rather sparse collection? All apos looking like this?

Zotto
Maren Kamke, 07-05-2015 19:24
Maren Kamke
Re : Pyrenopeziza ?
Hallo Zotto,
ich habe an einem anderen Halm noch eine Gruppe mit Fruchtkörpern fotografieren können. Pyrenopeziza psilocistelloides Baral sp. prov. kann es wohl wegen der septierten Randhaare nicht sein, oder?
Gruß, Maren
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Hans-Otto Baral, 07-05-2015 20:36
Hans-Otto Baral
Re : Pyrenopeziza ?
Ohje, dieses Ding, da kann ich mich sogar noch erinnern. Damals machte ich oft nur Beschreibungen ganz ohne Illustration, schade! Da gab es noch keine Digicams (1989).

Also das war schon deutlich haarig, und ob es wirklich eine Pyrenopeziza war? War auf ?Deschampsia aus Gerardmer.