29-07-2009 23:37
Bonsoir, J'ai fait ce soir juste avant la nuit (
29-07-2009 23:04
Nicolas VAN VOOREN
Bonsoir. Je pense avoir récolté Pezoloma kathia
28-07-2009 23:56
Hans-Otto Baral
Peter Tobies asked me about this Hypocreaceae whic
27-07-2009 13:37
Gernot FriebesHello, I found this discomycet this year's spri
25-07-2009 07:15
Bonjour, Je ne vois pas ce que peut être ce peti
24-07-2009 19:32
Edouard Evangelisti
Bonjour le forum ! Je sollicite votre aide pré
24-07-2009 16:48
Beñat Jeannerot
Bonjour à tous, Je reviens un peu dans les parag
21-07-2009 00:27
Miguel Ángel Ribes
Hi again This another one is 1-1,5 mm, subsesil
pruinose pseudothecia on resin
Garrido-Benavent Isaac,
16-03-2018 12:26
I found this beautful pseudotheciate ascomycete growing on Pinus halepensis bark with resin exudates in the eastern Iberian Peninsula. Ascomata seem to correspond with pseudothecia, and the apical openning has a greenish pruina (the photos show a whitish pruina, but it is greenish!). See attached macrophotographs.
Microscopically, the most remarkable character is the presence of multispored ascii (tens of spores). Spores are rounded, small and hyaline. In fact, the microscopical characters resemble somewhat those shown by the genus Sarea, which is also resinicolous. Moreover, the unknown species has pseudoparaphyses.
Molecular data are not conclusive. The more conserved LSU marker seems to point to the Lecanoromycetes, in between of genera whose species are lichenized (Umbilicaria, Porpidia, Acarospora, etc.). But the similarity is quite low (93%). However, our unknown species does not establish these symbiotic associations. Information from the ITS is not of much help.
Any further insight from your side on the taxonomical identity of this species will be greatly appreciated.
Best wishes,
Isaac
Per Vetlesen,
16-03-2018 13:36
Garrido-Benavent Isaac,
16-03-2018 17:57
Re : pruinose pseudothecia on resin
Hi Per,
Yes, I think it is the same thing.
Thanks for your post! :-)
Best wishes,
Isaac
Yes, I think it is the same thing.
Thanks for your post! :-)
Best wishes,
Isaac
Stip Helleman,
19-06-2024 22:32
Re : pruinose pseudothecia on resin
dear Isaac,
another one is found in Switzerland, did your investigations go any further in the meanwhile?
Best wishes,
Stip Helleman



