
22-04-2025 09:35
François BartholomeeusenDear forum members, Can someone help me!On April

22-04-2025 10:37
François BartholomeeusenAlso found on April 18, 2025 on an old seed-pod of

29-03-2025 05:45
Sebastien BassoHello, I'm conducting a mycological inventory in

19-04-2025 20:48
Dear Ascofrance. I have not posted pyrenos for a l

19-04-2025 08:51
Henri KoskinenCould you help me in the right direction with this

18-04-2025 21:54

Hi Forum,I found this aquatic pyrenomycete a few d
Asco on Umbelliferae stems
Enrique Rubio,
17-04-2009 18:42
ASci IKI bb, avec des crochets, 8-spored, jusqu'a 125 x18. Paraphyses avec cilindriques et refringentes vacuoles KOH (-). Excipulum textura porrecta gelifiée (non globuloso-angularis). Spores 0-3 septa, multiguttulés, 23-26 x 6-7 que germinent en phialides (¿) brunes.
Je ne connais pas le genre.
Merci en avancé
Enrique
Ascomata 0.5-0.7 mm, greyish, bluish, patellarioide, convex, (sub) sphaeerical and pruinose at maturity. Asci up to 125 x 18, 8-spored, IKI bb, with croziers. Paraphyses with refractive and cilyndrical VB's turning red brownish in IKI. Excipulum porrecta gelified (not angularis). Spores up to 3 septate, muliguttulate, hyalines, 23-26 x 6-7 germinating in brownish phialides (?).
I don't know the genus it belongs.
Many thanks
Enrique
Hans-Otto Baral,
17-04-2009 20:33

Re:Asco on Umbelliferae stems
Wonderful collection! This is my Calycellina "chalarae" nom. prov. (see DVD, HB 6307 + 7429, both on Reynoutria from Gelsenkirchen, and 4262, on Fagus stump, Tübingen. I assume the one on wood is the same species as that on herbaceous stems.
Now Seppo Huhtinen recently wrote me the following: "when checking Velenovsky's types which I brought with me when last time in Praque ... I am rather convinced that your Calycellina chalarae is Belonium betulinum Vel. I also saw the Chalara growing from spores, this time on top of three asci."
So we now have a name, but the generic placement still needs some consideration. I think that Calloriella or Micropeziza are worth to be compared too.
Zotto
Now Seppo Huhtinen recently wrote me the following: "when checking Velenovsky's types which I brought with me when last time in Praque ... I am rather convinced that your Calycellina chalarae is Belonium betulinum Vel. I also saw the Chalara growing from spores, this time on top of three asci."
So we now have a name, but the generic placement still needs some consideration. I think that Calloriella or Micropeziza are worth to be compared too.
Zotto
Enrique Rubio,
17-04-2009 20:51
Re:Asco on Umbelliferae stems
OK., Zotto. I can see in your DVD that is the same fungus.
Many thanks.
Many thanks.