Sistotrema on Quercus wood , Natura Mediterraneo

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APHYLLOPHORALES

Aphyllophorales da determinare

Sistotrema on Quercus wood

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enrirubio
Utente V.I.P.

Città: Avilés

Regione: Spain

132 Messaggi
Micologia

Inserito il - 29 dicembre 2019 : 00:19:03

Hi to everybody
I would like to know your opinion about this Sistotrema with white resupinate fruitbodys that grew on Quercus robur wood. The hymenophore is porulose, the basidia are urniform and polysporic and the clamped hyphae often have an oily content. The spores are narrowly ellipsoidal to subcylindrical and on many occasions their adaxial face is slightly concave.
Due to its morphology, it reminds me those of Sistotrema oblongisporum, although its width (up to 3 microns) seems to exceed the measurements that this species is usually given. However, other species such as S. suballantosporum seem to have a rather different spore morphology.
All the spores that appear in the images come from a spore print.

Do you have a better idea for me?
Many thanks again
Immagine:
Sistotrema on Quercus wood