13-02-2026 18:05
Margot en Geert VullingsOn February 9, 2026, we found these small hairy di
02-02-2026 21:46
Margot en Geert VullingsOn a barkless poplar branch, we found hairy discs
13-02-2026 03:30
Tomaz Vucko
Hello! I found these immersed perithecia on a stic
15-02-2026 04:32
Tomaz Vucko
One more specimen that is giving me some descent a
14-02-2026 22:45
Tomaz Vucko
Hy!I would ask for some help determing this specie
09-02-2026 14:46
Anna KlosGoedemiddag, Op donderdag 5 februari vonden we ti
14-02-2026 19:09
Valencia Lopez Francisco JavierHola colegasEstoi interesado en este articulo, Agn
14-02-2026 10:58
Bernard CLESSE
Bonjour à toutes et tous,Pourriez-vous m'aider à
12-02-2026 21:34
patrice CallardBonjour, la face inférieure des feuilles ce certa
anamorph on tree => Isaria friesii? Update 17-11-2019: + teleomorph
Riet van Oosten,
07-11-2019 20:59
Hello,
Found by Laurens van der Linde on a young fallen tree, The Netherlands (04-11-2019)
Conidia septate: 8.6-9.0 x 3.5-4.0 µm
Who can tell us more about this species?
Greetings, Riet
Hans-Otto Baral,
07-11-2019 21:12
Re : anamorph on tree
Hi Riet
this was repeatedly presented here. I find the following links:
http://www.ascofrance.fr/search_forum/55154
http://www.ascofrance.com/search_forum/27280
I would be glad to know the collection data of this find.
Zotto
this was repeatedly presented here. I find the following links:
http://www.ascofrance.fr/search_forum/55154
http://www.ascofrance.com/search_forum/27280
I would be glad to know the collection data of this find.
Zotto
Riet van Oosten,
07-11-2019 21:46
Re : anamorph on tree
Hello Zotto,
Thank you for all this information!
I will ask Laurens for the collection data!
Thank you for all this information!
I will ask Laurens for the collection data!
Riet van Oosten,
08-11-2019 19:17
Re : anamorph on tree => Isaria friesii?
Hello Zotto,
Hereby the link to the collection data:
Riet
Hans-Otto Baral,
08-11-2019 20:42
Re : anamorph on tree => Isaria friesii?
Thanks!
Riet van Oosten,
08-11-2019 20:57
Re : anamorph on tree => Isaria friesii?
and a find d.d. 23-12-2018 by Laurens van der Linde (same place)
Riet van Oosten,
17-11-2019 14:55
Re : anamorph on tree => Isaria friesii?
On 11-11-2019 Laurens also found the teleomorpf (same place)
Hans-Otto Baral,
17-11-2019 17:31
Re : anamorph on tree => Isaria friesii? Update 17-11-2019: + teleomorph
Oh this is superb! Exactly as we know the teleomorph from other samples. With its capitate paraphyses one might think that it might be described as an Orbilia in older times.
The substrate is unclear? Did you try to identify from the wood anaotmy or else? And I suppose the branch was exposed, not on the ground, as you say "young fallen tree".
The substrate is unclear? Did you try to identify from the wood anaotmy or else? And I suppose the branch was exposed, not on the ground, as you say "young fallen tree".
Riet van Oosten,
17-11-2019 18:15
Re : anamorph on tree => Isaria friesii? Update 17-11-2019: + teleomorph
I will ask Laurens if he can tell us more about the tree.
Riet van Oosten,
19-11-2019 15:44
Re : anamorph on tree => Isaria friesii? Update 17-11-2019: + teleomorph
Laurens:
in 2018 on Urtica (old stem) and on wood (hardwood)
in 2019 on old tree (Populus) lying on the ground and on a branch of a collection of unknown branches (thickness 5 cm) 30-50 cm above the ground.
Only hardwood present: Alnus, Acer, Quercus and Populus.
Wood anatomy, a try .....
Hans-Otto Baral,
19-11-2019 16:46
Re : anamorph on tree => Isaria friesii? Update 17-11-2019: + teleomorph
Ah, this is goods. It excludes a lot, with certainty Alnus and Populus. Important is now to look at a cross-cut, is the wood ringpored with large pores? Then it should be Quercus. But I assume it is Acer. This belongs to the 2019 sample?
Riet van Oosten,
19-11-2019 16:59
Re : anamorph on tree => Isaria friesii? Update 17-11-2019: + teleomorph
Yes, this is the sample 04-11-2019.
I will try to make a cross-cut.
I will try to make a cross-cut.
Riet van Oosten,
21-11-2019 22:10
Re : anamorph on tree => Isaria friesii? Update 17-11-2019: + teleomorph
A cross section of the sample 04-11-2019.
Unfortunately the pieces of wood were so soft and brittle, they broke into small pieces and I'm out of material now ....
Hans-Otto Baral,
22-11-2019 10:13
Re : anamorph on tree => Isaria friesii? Update 17-11-2019: + teleomorph
So this is either Quercus or Fraxinus. Can one genus be excluded for that place?
Fraxinus may have 3-rowed radial rays and the pores of the summertime look singly, unlike Quercus. But the bark looks like Quercus to me but could be Fraxinus as well.
Fraxinus may have 3-rowed radial rays and the pores of the summertime look singly, unlike Quercus. But the bark looks like Quercus to me but could be Fraxinus as well.
Eduard Osieck,
25-11-2019 11:17
Re : anamorph on tree => Isaria friesii? Update 17-11-2019: + teleomorph
Hi to all,
Recently I found also the teleomorph plus the anamorph of "Isaria friesii" on an Ulmus branch still attached to the dead fallen tree (Houten, prv. Utrecht, 8/11/2019). The teleomorph showed only the capitate paraphyses and some young asci (no ripe asci).This time no association with Melomastia mastoidea like earlier this year at the same site (see http://www.ascofrance.com/search_forum/56055 ).
Eduard
Hans-Otto Baral,
25-11-2019 11:41
Re : anamorph on tree => Isaria friesii? Update 17-11-2019: + teleomorph
Thanks! I have also images from you from a Norwegian specimen (Jan. 2019) Did you obtain the collection data there?
Eduard Osieck,
25-11-2019 17:20
Re : anamorph on tree => Isaria friesii? Update 17-11-2019: + teleomorph
Sorry, that's not me, my collections were from the Netherlands ...
Cheers, Eduard
Hans-Otto Baral,
25-11-2019 17:31
Re : anamorph on tree => Isaria friesii? Update 17-11-2019: + teleomorph
Ah you are right it was Edvin Johannesen: http://www.ascofrance.com/search_forum/56055
Riet van Oosten,
26-11-2019 20:50
Re : anamorph on tree => Isaria friesii? Update 17-11-2019: + teleomorph
So this is either Quercus or Fraxinus. Can one genus be excluded for that place?
Fraxinus may have 3-rowed radial rays and the pores of the summertime look singly, unlike Quercus. But the bark looks like Quercus to me but could be Fraxinus as well.
----------------------------------------------------------------------------------------------
1. Got a message from Laurens: both present, Quercus and Fraxinus. I didn't get new material of this wood.
2. On 25-11-2019 Laurens visited the same place. He also found Isaria friesii on a thick (30 cm) branch lying on the ground under Salix. He is sure this branch is also Salix.
3. Also got a "new" piece of unknown wood (collected by Laurens van der Linde, 25-11-2019, same place), see pictures:
Hans-Otto Baral,
27-11-2019 09:30
Re : anamorph on tree => Isaria friesii? Update 17-11-2019: + teleomorph
Oh, this sounds difficult. No Quercus , Fraxinus or Salix. It could be Acer, if not something more exotic.
Riet van Oosten,
28-11-2019 19:50
Re : anamorph on tree => Isaria friesii? Update 17-11-2019: + teleomorph
3. Also got a "new" piece of unknown wood (collected by Laurens van der Linde, 25-11-2019, same place), see pictures:
Laurens went back to the tree from which he got this wood and made a photo of its bark
Hans-Otto Baral,
28-11-2019 20:18
Re : anamorph on tree => Isaria friesii? Update 17-11-2019: + teleomorph
This looks not unfamiliar to me but i cannot say. Anyway thanks! The tree is dead since some time?
Viktorie Halasu,
28-11-2019 20:39
Re : anamorph on tree => Isaria friesii? Update 17-11-2019: + teleomorph
Hello,
the silver bark two posts above me looks like Populus tremula.
V.
the silver bark two posts above me looks like Populus tremula.
V.
Riet van Oosten,
28-11-2019 21:15
Re : anamorph on tree => Isaria friesii? Update 17-11-2019: + teleomorph
The trunk is broken through the middle at a height of 4 meters, the broken part hanging from the tree. The tree is almost dead.
(Laurens also thinks it is a poplar.)
Thank you very much Viktorie!
(Laurens also thinks it is a poplar.)
Thank you very much Viktorie!