27-04-2026 18:48
Tony MoverleyCollected 23rd April 2026, Norfolk, EnglandSwarms
27-04-2026 20:52
Lothar Krieglsteiner
Found on hanging tiwg of Olea europaea in dried-ou
28-04-2026 22:51
Bernard CLESSE
Bonsoir à toutes et tous,Pourriez-vous m'aider à
29-04-2026 08:01
Lothar Krieglsteiner
... on twig attached to small tree of Citrus auran
29-04-2026 10:44
Lothar Krieglsteiner
growing at moist, drying-out soil at the side of a
28-04-2026 20:33
Vitus SchäfftleinHello, I found Trochila ilicina on Ilex aquifoliu
28-04-2026 21:50
Pablo Sandoval
Hola a todos,Espero se encuentren bien. Hace mucho
27-04-2026 18:05
Lothar Krieglsteiner
... still attached at standing tree. The green con
28-04-2026 20:07
Lothar Krieglsteiner
... on twig in the air at standing Ceratonia siliq
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
