30-04-2024 16:22
François BartholomeeusenDear forum members,On April 25 2024, I found one f
03-05-2024 18:04
Riet van OostenHello, Found by Laurens van der Linde on Rubus fr
01-05-2024 23:22
Ethan CrensonHi all, Found late last week in a New York City p
29-04-2024 21:32
Robin IsakssonHi! Found in Sweden. Ascomata with haris, se
01-05-2024 12:54
F. JAVIER BALDA JAUREGUIHello, everyone.An idea for this pyreno, I found u
30-04-2024 19:43
Gernot FriebesHi!We observed this hyphomycete growing between le
29-04-2024 21:51
Mathias HassHi everyone, Found on attached branches of top pa
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