24-04-2024 21:54
éric ROMEROBonjour, J'ai trouvé ce Lasiobolus sur laissées
23-04-2024 15:18
Lothar Krieglsteiner... but likely a basidiomycete. I hope it is o.k.
23-04-2024 13:17
Edouard EvangelistiBonjour à tous, Je viens de récolter ce que je
23-04-2024 21:49
Ethan CrensonHello all, A friend recently found this orange as
22-04-2024 11:52
Zuzana Sochorová (Egertová)Hello,I made a loan of a collection of Microstoma
11-01-2022 16:36
Jason KarakehianHi does anyone have a digital copy of Raitviir A (
22-04-2024 20:38
Miguel Ángel RibesGood afternoon.Does anyone know this anamorph?It g
19-04-2024 14:28
B ShelbourneCudoniella tenuispora: Distinctive macro and habit
Black apothecia with greenish septate spores on Picea abies twig
Edvin Johannesen,
23-03-2023 12:36
Asci are 4-spored, clavate with a very long, alomost hypha-like base, ca. 20 micr. across at their broadest. Paraphyses filiform, ca. 1 micr. thick.
Spores 3-septate, greenish at maturity, 25-30 x 9-10 micr.
Asci stain blue in Lugol, somewhat stronger towards the apex. Asci also weakly blue in Lugol after pre-treatment with KOH and water rinsing. Spores possibly also somewhat amyloid, but masked by the initial green color of spore wall.
Are we in Ostropales? In the "vicinity" of Tryblidiopsis? Opinions appreciated. Thanks!
Edvin Johannesen,
23-03-2023 12:37
Edvin Johannesen,
23-03-2023 12:38
Edvin Johannesen,
23-03-2023 12:39
Edvin Johannesen,
23-03-2023 12:40
Hans-Otto Baral,
23-03-2023 16:53
Re : Black apothecia with greenish septate spores on Picea abies twig
This reminds me of Lahmia kunzei = Parkerella populi, which is known from POpulus bark with much smaller apos (0.2-0.3 mm), 8-spored inamyloid asci, and apparently thin-walled, allantoid, 3-septate spores of 18-37 x 4-5. Only 1 species is known on the genus.
I have it in Tympanidaceae, but this is tentative and no sequence is known to me.
Edvin Johannesen,
23-03-2023 17:04
Re : Black apothecia with greenish septate spores on Picea abies twig
Thanks! So I would say, despite similarities, quite different from Lahmia kuntzei. Jason K. has offered to sequence it and perhaps also try to cultivate it. Do the spores look dead, by the way?
Hans-Otto Baral,
23-03-2023 17:15
Re : Black apothecia with greenish septate spores on Picea abies twig
The multiguttulate ones are alive.
Jason Karakehian,
23-03-2023 19:15
Re : Black apothecia with greenish septate spores on Picea abies twig
We should tell Luis Quijada about this if you think Tympanidaceae. The caespitose apothecia seem to suggest that, but I have no experience with the group.
Edvin Johannesen,
23-03-2023 21:51
Re : Black apothecia with greenish septate spores on Picea abies twig
OK, thanks again. I have been in touch with Luis a couple of times before, so I will bring this to his attention.