14-06-2025 13:28
Richard VALERI
Bonjour à tous.Trouvé au sol, longuement résupi
13-06-2025 16:34
Andgelo Mombert
Bonjour,Un petit discomycète qui me résiste. Il
12-06-2025 19:36
Rodríguez Borja
Hi, I have got this collection hoping you can giv
13-06-2025 09:41
Josep Torres
Hello.A cerebriform ascomycete sprouting scattered
12-06-2025 15:53
Viktorie Halasu
Hello, I keep finding something with spores like
12-06-2025 08:58
Josep Torres
Hello.Some synnemata sprouting in a scattered but
12-06-2025 19:26
Charles Aron
Hi All, Recently I found this minute Bryoscyphus
11-06-2025 13:44
Nicolas Suberbielle
Bonjour,J'ai trouvé cette espèce aux alentours d
Rutstroemia sp. Nov '21
Nihad Omerovic,
11-11-2021 23:06
Looking for opinions on this Rutstroemia.
Collection date 16. Oct, on a twig, possibly of Alnus.
Spores measurement:
22.2 - 24.1 × 8.4 - 9.4 µm
Q = 2.4 - 2.8 ; N = 19
Me = 23.1 × 8.9 µm ; Qe = 2.6
The spores have reddish color.
Rutstroemia-sp-web-0001.jpg
Nihad Omerovic,
11-11-2021 23:10
Re : Rutstroemia sp. Nov '21
Spores
Nihad Omerovic,
11-11-2021 23:14
SAM-6224b-0001.jpg
Hans-Otto Baral,
12-11-2021 11:43
Re : Rutstroemia sp. Nov '21
This requires a closeup of the ectal excipulum. Is there a gelatinous layer?
You should compare R. alnobetulae.
Which altitude does it come?
Nihad Omerovic,
12-11-2021 13:12
Re : Rutstroemia sp. Nov '21
I am afraid I don't have much better photo of the excipulum.
I did compare it with R. alnobetulae but it didn't fit, as per R. Dougoud paper:
spores are wider (Q=2,6 while in R. alnobetulae Q=4), no mentioning of this spores reddish coloration and paraphyses are inamyloid.
Altitude is 500 m.
I did compare it with R. alnobetulae but it didn't fit, as per R. Dougoud paper:
spores are wider (Q=2,6 while in R. alnobetulae Q=4), no mentioning of this spores reddish coloration and paraphyses are inamyloid.
Altitude is 500 m.
Hans-Otto Baral,
12-11-2021 13:18
Re : Rutstroemia sp. Nov '21
Yes, the strange blue IKI reaction of the VBs in the paraphyses! And your spores are much too wide.
But I now see that R. alni (17-24 x 7-9) would come close to your data.
I think Rutstroemia is rather host specific, so the substrate should be clarified by wood anatomy.
Nihad Omerovic,
12-11-2021 13:31
Re : Rutstroemia sp. Nov '21
I have this cross section, I don't know if it is of any help.
Is the spore coloration of any significance, do you think?
I also collected What I IDed as R. alni the other day and compare it and it seemed different, excipulum, spores...
Is the spore coloration of any significance, do you think?
I also collected What I IDed as R. alni the other day and compare it and it seemed different, excipulum, spores...
