16-04-2015 12:01
Blasco RafaelHola tengo esta muestra recogida en Populus que cr
17-04-2015 13:29
Mario FilippaBonjour, j'ai trouvé ces deux fructification de
16-04-2015 09:19
Blasco RafaelHola, repito mensaje, ya que al estar mezclado con
02-04-2015 22:07
Castillo JosebaMe la mandan de GaliciaNo se por donde comenzarSal
16-04-2015 11:25
Garcia SusanaHello, I found these apothecia on wood probably s
15-04-2015 22:57
Quijada LuisHi all, somebody has the following manuscript:Kor
15-04-2015 16:48
Eduard OsieckCapronia with partly submuriform spores: 16-19 x 5
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