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04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

31-10-2025 09:19

Lothar Krieglsteiner Lothar Krieglsteiner

Can somebody provide me with a file of:Rogerson CT

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Peziza sp
William Slosse, 07-04-2017 23:46
William SlosseI found this species on rich claysoil covered by a layer of dead stems of Urtica.
No stalk.
Spores 20.50 x 11.54mu
Parafyses clubshaped and filled with yellow drops (examined in water)
Excipulum of textura globulosa
Anyone an idea?
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DirkW, 08-04-2017 00:14
DirkW
Re : Peziza sp
salut william, i think this is peziza granularis Donadini.

best

dirk
Nicolas VAN VOOREN, 08-04-2017 11:03
Nicolas VAN VOOREN
Re : Peziza sp
I don't believe in P. granularis because of the yellow content of paraphyses.
Did you check the spore ornamentation in CB?
DirkW, 08-04-2017 11:21
DirkW
Re : Peziza sp
salut nicolas, i always thought the yellow content is a main feature of p. granularis:
http://www.hannoverpilze.de/November2008.htm

in all my collections the same ...
do i have a wrong name?

best

dirk
William Slosse, 09-04-2017 21:45
William Slosse
Re : Peziza sp
Thx for your reactions.
I did some research during th past days and I must admit that granularis is a possible option.
But there exist a discussion either it is granularis or fimeti.
Granularis has smooth borders on the apothecia and no drops at the ends of the spores (what fits with my observations) but the parafyses are, in my obesrevations, obviously filled with jellow drops and shows no incrustations which are charasteric features of fimeti.
So I am still in doubt.
Nicolas VAN VOOREN, 10-04-2017 07:49
Nicolas VAN VOOREN
Re : Peziza sp
William,
To try a correct determination, you must give us more information about the microscopic features:
- structure of the flesh (how many layers? And type of cells)
- range of spore size, measured on a spore-print
- ornamentation (check in CB)

All these elements are very important to evaluate the species of the Peziza-core group.
Nicolas VAN VOOREN, 10-04-2017 07:54
Nicolas VAN VOOREN
Re : Peziza sp
Dirk,
I cannot recognize P. granularis on your picture. But we need more information (see my previous message) to determine it. Macroscopically, it looks like P. acroornata or P. montirivicola.