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08-06-2015 22:02

Peziza on woodchip (Rhododendron)

Pollard Adam

Bonsoir! Can anyone help ID this Peziza please?Spo

09-06-2015 09:19

Blasco Rafael

Blasco Rafael

Hola, tengo esta muestra recogida sobre Urtica a 1

07-06-2015 01:35

Michael Beug

Michael Beug

The long-stalked cups were growing on Sphagnum. No

07-06-2015 01:31

Possible Pezoloma

Michael Beug

Michael Beug

Does anyone know what this Asco might be? It was g

30-03-2015 17:55

Morchella 130414

Luis Ballester

Luis Ballester

Hola amigos. ¿Alguna vez habéis visto una Morche

08-06-2015 16:22

Blasco Rafael

Blasco Rafael

hola tengo esta muestra recogida en orilla carrete

07-06-2015 11:59

Unknown Mollisia on Cirsium sp.

Maren Kamke

Maren Kamke

Hi everybody,Apothecia messures up to 0,5 mm in di

07-06-2015 23:15

Pyrenomycete on Fagus

Steve Clements

Hi,This stromatic pyrenomycete was found on a beec

07-06-2015 22:16

Xylaria..? from Panama

Esquivel-Rios Eduardo

SaludosEncontre este hongo en un suelo organico, p

07-06-2015 19:37

Disco on Carex pendula

Chris Yeates

Chris Yeates

Bonsoir tousthis fungus was collected in good cond

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