05-05-2024 09:59
Gernot FriebesHello,I failed to identify this anamorph, which gr
19-04-2015 20:20
Enrique RubioHi again Could you help me with this paper? NANN
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
the 'foam-cakes' which can develop in fast flowing streams are a very interesting habitat for the so-called 'Ingoldian Fungi'.
Examples of some of the often distinctive conidia found can be seen here:
http://www.ascofrance.com/search_recolte/3964
http://www.ascofrance.com/search_recolte/3943
http://www.ascofrance.com/search_recolte/3010
Amongst these "aquatic hyphomycetes" one often sees diatoms and other algae, lepidopteran wing scales, pollen etc.; and also chance fungal spores from unknown fungi (which may or may not be aquatic in origin). Normally one ignores these, but occasionally one finds something so striking there may be a hope of getting an identification, even from a single spore. Here is an example of this and I am hoping that such a distinctive spore (which is surely an ascospore - Pleosporales or similar?) will be recognised by someone here. Notable are the large size of the spore and the very distinctive hyaline tips at each end (which are not formed within a single cell - the terminal cells are part-coloured). It may not be evident from the photograph, but the spore is 8-septate.
As ever any suggestions would be very welcome.
Chris
could be an ascospore of Trematosphaeria hydrela.
Best wishes,
Gernot
Exactly !
It's more common to find conidias of the anamorphic stages, ingoldian fungi, but sometimes there are ascospores of the sexual stage. One can also find non-aquatical spores.
Alain
Hi Chris and Gernot,
I fully agree with Gernot: this should be the spore of Trematosphaeria hydrela! I quite often found these species on deciduous wood in rivulets.
Regards from Lothar