29-03-2017 19:33
Jan KnuimanHello everyone,I'm new to this forum and herewith
29-03-2017 22:00
Lepista ZacariasHi everyone,Maybe some of you know this fungus tha
27-03-2017 10:55
Per VetlesenHi,I have found this asco two times on bark of Jun
29-03-2017 09:10
Garcia SusanaHola,Está recogida en abril de 2015. La tenía si
28-03-2017 00:09
Patrice TANCHAUDBonsoir,récolte réalisée en milieu sablonneux.
28-03-2017 11:12
Blasco Rafael
Hola, a ver si Ustedes me pueden ayudar con esta m
27-03-2017 22:00
Bernard CLESSE
Sur branche très pourrie et imbibée de feuillu (
27-03-2017 21:13
Bernard CLESSE
À nouveau rien au niveau microscopie pour ce qui
27-03-2017 20:12
Bernard CLESSE
Sur moquettes (crottes) de chevreuil. J'ai regard
Biscognauxia? from Australia
Hans-Otto Baral,
06-09-2007 22:34
Bon jouron a branch of a broad-leaved, Ficus-like tree in NE-Australia grew in association with Orbilia aff. vinosa a quite banal looking Xylariales resembling a Biscognauxia. The spores seem, however, unusual in their one end being distinctly truncate. Has anybody an idea what genus and perhaps species this is?
data: Sp. 9.5-12.5 x (5.3-)5.7-6 µm. Stroma 7-23 x 5-12 mm, 0.8 mm thick. HB 8609b.
Zotto
Hans-Otto Baral,
06-09-2007 22:36
Re:Biscognauxia? from Australia
in section
Hans-Otto Baral,
06-09-2007 22:36
Re:Biscognauxia? from Australia
in Lugol
Jacques Fournier,
20-09-2007 09:06
Re:Biscognauxia? from Australia
Hi Zotto,
sorry for the delay, I was off when you sent your message.
I agree it is likely a Biscogniauxia. In this genus several species have two-celled ascospores, a big brown one, bearing a germ slit, and a small hyaline one which usually collapses with time and leaves a truncate end. This can be seen in Xylaria, Anthostomella and Nemania too. One of the ascospores on your photo still has its dwarf cell, quarter SE
Your taxon would need further data to be safely identified. If the stroma does have punctate ostioles surrounded by a low rim and if ascospores have a long germ slit, it might be B. uniapiculata (Penz. & Sacc.) Whalley & Laessoe, a common pantropical species.
All my best,
Jacques
sorry for the delay, I was off when you sent your message.
I agree it is likely a Biscogniauxia. In this genus several species have two-celled ascospores, a big brown one, bearing a germ slit, and a small hyaline one which usually collapses with time and leaves a truncate end. This can be seen in Xylaria, Anthostomella and Nemania too. One of the ascospores on your photo still has its dwarf cell, quarter SE
Your taxon would need further data to be safely identified. If the stroma does have punctate ostioles surrounded by a low rim and if ascospores have a long germ slit, it might be B. uniapiculata (Penz. & Sacc.) Whalley & Laessoe, a common pantropical species.
All my best,
Jacques
Hans-Otto Baral,
20-09-2007 16:42
Re:Biscognauxia? from Australia
Hi Jacques
tnaks a lot, that helps. Yes, the spores have a long germ slit, visible at the lower right spore on my photo, here again. Now I believe the spores are originally 2-celled. The ostioles are simple minute craters, please see photo.
Zotto
tnaks a lot, that helps. Yes, the spores have a long germ slit, visible at the lower right spore on my photo, here again. Now I believe the spores are originally 2-celled. The ostioles are simple minute craters, please see photo.
Zotto
3127.gif
Hans-Otto Baral,
20-09-2007 16:43
Re:Biscognauxia? from Australia
Here the osioles
