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13-08-2020 19:44

Lothar Krieglsteiner Lothar Krieglsteiner

... last week in the Eifel (Germany). It looks mac

13-08-2020 21:47

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur tige morte d'une plante suffrutescen

13-08-2020 21:33

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur tige morte de Dryas octopetala, vers

13-08-2020 19:22

Pavol Palo

Hello friends, may I ask you for help ? I would n

09-08-2020 07:55

Lothar Krieglsteiner Lothar Krieglsteiner

... maybe Molinia, in an acid bog (near Narthecium

15-02-2018 08:09

BERNARD CLESSE BERNARD CLESSE

Sur tige morte de renouée du Japon.Aucune idée

09-07-2020 00:39

Valencia Lopez Francisco Javier

Hola a todosEncontré este curioso ascomycete a me

08-08-2020 20:54

Antonio Couceiro

Ascoma de 5cm, creciendo entre raices de Prunus la

09-08-2020 22:18

Lothar Krieglsteiner Lothar Krieglsteiner

... the spores of this find (today, in the Eifel,

09-08-2020 15:33

Eduard Osieck

Can somebody provide a copy of GÖRKE, C. & H

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Peziza with purple hymenium?
Mirek Gryc, 15-07-2020 10:39

Hello everyone and I am asking you for advice!
A few days ago I found her but I didn't microscope until yesterday because she was immature.
In fact, she is still poorly mature but I decided to take the first pictures. I did not do print spores but for measurement I chose spores with a clear ornamentation that is the most mature. The sporocarps continue to grow to produce well-ripe spores.
In principle, everything can be seen in the pictures but I will add a few details.
Yellowish contents appear in paraphyses, but also in some places on the tops of paraphyses, there is also an external pigment.
At Peziza I always have problems with the definition of croziers so I only present a picture and I leave the decision to you.
Spores mostly with two equal, large drops.
(13.5) 14.1 - 17 (17.4) × (7.5) 7.9 - 9.4 (9.7) µm
Q = (1.6) 1.7 - 1.9 (2); N = 24
Me = 15.5 × 8.6 µm; Qe = 1.8

The microscopic features very similar to P. michelii/succosella/succosa, but both macro and high density of ornamentation on the spore poles do not suit me very much to this species. I look forward to your greater experience in this topic. Thank you in advance for any help.
best regards
Mirek

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Nicolas VAN VOOREN, 17-07-2020 09:02
Nicolas VAN VOOREN
Re : Peziza with purple hymenium?
Hi Mirek.
Interesting but the specimens seem immature, so I think better waiting for a spore print to evaluate correctly the ornamentation.
Sergey Markov, 17-07-2020 12:14
Re : Peziza with purple hymenium?
Perhaps these Peziza's grew near to a plant Lathraea sp.? We find very similar (macrosopically) specimens near to it, but so far we cannot identify them. Unfortinately i don't have microscopic images of it at now.
Mirek Gryc, 17-07-2020 15:34
Re : Peziza with purple hymenium?
Hello
Nicolas, that's why I grow a fruiting body :)
I left a few in the forest!

Sergey, thank you for reminding us about Lathraea sp. :)
I was supposed to write about it to Nicolas on the occasion of sending Peziza cf. howsei. I forgot, but since you reminded me, I take this opportunity:
Nicolas, the collections that I sent you and marked, Puszcza Knyszynska - Czolnowo, grew right next to Lathraea sp.
However, this is not the same genre that I present in this thread! The ornamentation of those is completely different.


Mirek

Mirek Gryc, 20-07-2020 12:45
Re : Peziza with purple hymenium?
Hi
The fruiting bodies are already fully ripe. Further breeding threatens to spoil.
I visited the fruiting area again and took fresh fruiting bodies as well.
I did a spores print.
However, I come to the conclusion that it is some kind of albinistic form of P. michelli. All the features fit this genre perfectly. The only thing that is missing is the yellow pigment that colors the outer surface. Some of the spores do have somewhat unusual embellishments on the poles. However, compared to the total number of spores, these are very small. Therefore, I cannot consider it a permanent feature. Most of the spores have an ornamentation typical of P. michelii. In this case, only because of the lack of the typical coloration, I can consider it Peziza cf. michelii.
Of course, I have fruiting bodies and if someone is interested in making a sequence and comparing with P. michelii, I would like to share the fruiting bodies.
I would like to thank everyone for participating in the discussion.
I present a few comparative photos of P. michelii that are present in mass in this area and photos of free spores.
Mirek
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