Accès membres

Mot de passe perdu?

20-03-2026 12:53

Eutypa spec. (?)

Stefan Blaser

Hello everybody, In the field, from distance, my

20-10-2017 09:23

Hymenoscyphus ¿calycinoides?

Garcia Susana

Este otro crecía en el mismo trocito de madera qu

20-03-2026 16:16

Pseudomassaria-like on Cornus alba

Edvin Johannesen

Edvin Johannesen

These 0.5 mm diam. acervuli were breaking through

19-03-2026 19:34

Xylariaceae? on Carpinus betulus wood

Filip Fuljer

Filip Fuljer

Hello everyone,a few days ago I collected this str

19-03-2026 18:25

Myriosclerotinia curreyana?

William Slosse

William Slosse

Good evening everyone, On 18/03/26 I found a few

17-03-2026 10:09

Lasiobelonium corticale ?

FranÃ§ois FrelÃ©choux

François Freléchoux

Bonjour, Voici la description rapide d'un petit d

19-03-2026 15:58

"Lasiosphaerioid"

Stefan Blaser

Hello everybody, I hope for some hints... Macro:

19-03-2026 17:50

Massarina on Corylus

Enrique Rubio

Enrique Rubio

Hi to everybodyThese thiny, blackish pseudothecia

18-03-2026 13:09

Orbilia on Celtis occidentalis

Khomenko Igor

Khomenko Igor

I recently examined Celtis occidentalis branches

17-03-2026 19:41

Pyréno sur branche morte de chêne

Bernard CLESSE

Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

Peziza on woodchip (Rhododendron)

Pollard Adam, 08-06-2015 22:02

Bonsoir!

Can anyone help ID this Peziza please?
Spores are smooth 15-18 x 9-10µm. No guttules.
Asci only blue at very tip in Melzers.
Paraphyses slender, sparse and fragile. Simple, and septate with slightly inflated ends.
The brian Spooner key takes me to P.micropus, except these fruit bodies were very large (up to 150mm diameter)

Nicolas VAN VOOREN, 08-06-2015 22:52

Nicolas VAN VOOREN

Re : Peziza on woodchip (Rhododendron)

In my opinion, the best option is P. varia, but it would be useful to see content of paraphyses (in water) and to provide information on the structure of the flesh.

Michael Beug, 09-06-2015 02:16

Michael Beug

Re : Peziza on woodchip (Rhododendron)

I agree, your Peziza is certainly consistent with Peziza varia. With P. varia the lower and middle cells of the septate paraphyses can be up to 20 microns wide in a high moisture environment. The apical tips are slender and slightly clavate.

Lothar Krieglsteiner, 09-06-2015 08:10

Lothar Krieglsteiner

Re : Peziza on woodchip (Rhododendron)

Hello Nicolas,
can you explain or tell me literature on the complex Varia - repanda, cerea incl. muralis and micropus are difficult to separate and maybe the same. Where can I learn more?
Regards from Lothar (I fear I am not fully actual here ...)

François Valade, 09-06-2015 11:30

FranÃ§ois Valade

Re : Peziza on woodchip (Rhododendron)

Hello Lothar
here is the link to Karen Hansen's publication
http://dash.harvard.edu/bitstream/handle/1/3153301/Pfister_PhylogeneticDiversityCore.pdf?sequence=1
François

Lothar Krieglsteiner, 09-06-2015 11:39

Lothar Krieglsteiner

Re : Peziza on woodchip (Rhododendron)

thank you very much!

I always thought that it is highly arbitrary to divide the varia-complex. Very nice!

Best regards from Lothar

Lothar Krieglsteiner, 09-06-2015 11:39

Lothar Krieglsteiner

Re : Peziza on woodchip (Rhododendron)

thank you very much!

I always thought that it is highly arbitrary to divide the varia-complex. Very nice!

Best regards from Lothar

Pollard Adam, 09-06-2015 12:19

Re : Peziza on woodchip (Rhododendron)

Thanks / Merci to your help! Perhaps it was hard to see in the photos, but none of the paraphyses were swollen except the tips. This is why I ruled out P.varia as I assume monoliliform refers to swelling away from the tip.

Lothar Krieglsteiner, 09-06-2015 12:59

Lothar Krieglsteiner

Re : Peziza on woodchip (Rhododendron)

.. yes, the "old" P. varia ss. str. was defined with moliniform paraphyses. But this character, as others, seems to be highly variable and influenced by environmental conditions.

Regards from Lothar