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21-03-2026 15:13

Lepista Zacarias

Hello everyone, Does any one know of any literatu

21-03-2026 22:59

Petr Soucek

Good evening, I would appreciate some advice on th

20-03-2026 12:53

Stefan Blaser

Hello everybody, In the field, from distance, my

20-10-2017 09:23

Garcia Susana

Este otro crecía en el mismo trocito de madera qu

20-03-2026 16:16

Edvin Johannesen Edvin Johannesen

These 0.5 mm diam. acervuli were breaking through

19-03-2026 19:34

Filip Fuljer Filip Fuljer

Hello everyone,a few days ago I collected this str

19-03-2026 18:25

William Slosse William Slosse

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

17-03-2026 10:09

François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

19-03-2026 15:58

Stefan Blaser

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

19-03-2026 17:50

Enrique Rubio Enrique Rubio

Hi to everybodyThese thiny, blackish pseudothecia

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Rutstroemia ?
Patrice TANCHAUD, 27-10-2015 12:16
Bonjour,

récolte réalisée sur une branchette (je crois) au sol, sur un chemin en forêt de feuillus. Apothécie 3 mm. Asques 140 µm en moyenne, spores 15-17,5 x 4,5-5,5 µm.
I see Rutstroemia ulmariae ... ou serait-ce tout simplement R. firma ?
Merci d'avance pour vos avis, j'ai une seule apothécie, je n'ai pas encore regardé la textura.

Harvesting on a twig (I think) on the ground, on a deciduous forest on the way. Apothecium 3 mm. Asci 140 µm on average, spores 15-17,5 x 4,5-5,5 µm.
I see Rutstroemia ulmariae ... or is it simply R. firma ?
Thank you in advance for your advice, I have one apothecium, I have not watched the textura.

Patrice
Hans-Otto Baral, 27-10-2015 12:49
Hans-Otto Baral
Re : Rutstroemia ?
The twig looks to me like Quercus, can it be? You should see that when looking at the pores of the wood.

R. firma has either straight or curved spores, I never understood why.
Patrice TANCHAUD, 27-10-2015 13:13
Re : Rutstroemia ?
Quercus is possible where I was. Straight or curved spores for R. firma, then this is perfect, but if you do not know why, me neither ...
Thanks very much.

Patrice