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15-12-2025 15:48

Danny Newman Danny Newman

Melanospora cf. lagenaria on old, rotting, fallen

15-12-2025 15:54

Johan Boonefaes Johan Boonefaes

Unknown anamorph found on the ground in coastal sa

15-12-2025 21:11

Hardware Tony Hardware Tony

Small clavate hairs, negative croziers and IKI bb

15-12-2025 07:09

Danny Newman Danny Newman

indet. Rutstroemiaceae sp. on unk. fallen leavesMc

15-12-2025 21:47

Pol Debaenst

Good evening, On 12/11/2025 I found ascomycetes w

15-12-2025 07:05

Danny Newman Danny Newman

Pseudosclerococcum golindoi (det: Zotto)near Cosb

15-12-2025 11:49

Danny Newman Danny Newman

ITS sequences from the following two collections B

15-12-2025 12:34

Danny Newman Danny Newman

indet. Rhytismataceae on oak leafnear Purchase Roa

09-12-2025 12:06

Andgelo Mombert Andgelo Mombert

Bonjour,Je recherche l'article concernant Hypobryo

13-12-2025 17:26

Buckwheat Pete

Hello everyone,I have a rather interesting ascomyc

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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)

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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
François 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