Accès membres

Mot de passe perdu? S'inscrire

14-01-2026 10:02

Hulda Caroline Holte

Hello, These ascomycetes were growing on standing

13-01-2026 10:13

Danny Newman Danny Newman

Cordieritidaceae sp. on indet. wood w/ Hypoxylon s

13-01-2026 07:57

Danny Newman Danny Newman

cf. Bombardia on indet. decorticate woodAppalachia

14-01-2026 07:28

Danny Newman Danny Newman

Nemania sp. on indet. decorticate woodAppalachian

12-01-2026 22:02

Ethan Crenson

Hello all, I am hoping someone will have some ins

11-01-2026 20:35

Josep Torres Josep Torres

Hello.A very tiny pyrenomycete sprouting sparsely

13-01-2026 18:55

Rees Cronce

Strossmayeria sp. on indet. decroticate hardwoodTh

13-01-2026 07:28

Danny Newman Danny Newman

Chlorociboria glauca on indet. decorticate logThe

13-01-2026 07:14

Danny Newman Danny Newman

Neodasyscypha cerina on indet decorticate logThe S

13-01-2026 09:10

Danny Newman Danny Newman

Dasyscyphella chrysotexta on indet. decorticate ha

« < 1 2 3 4 5 > »
Hyaloscypha sp.
Maren Kamke, 11-01-2014 19:38
Maren KamkeHi again,
I need your help again. I found this Hyaloscypha on wood, Fagus maybe Quercus. The apothecia are up to 0,4 mm white to pale yellow. Spores (6-9,5) 7,65 x 2,5 (2-3) µm, oil = 0-1, Asci 42 x 5, with croziers, without IKL - reaction even after KOH-treatment with Baralscher Solution and Melzer. paraphyses thin 1 µm, cylindrical. Hairs short 21-25 x 3-3,5 µm, lageniform, apical 1,2 µm, with solitary cristals.
Thanks
Regards Maren
  • message #26712
  • message #26712
  • message #26712
  • message #26712
  • message #26712
  • message #26712
  • message #26712
  • message #26712
  • message #26712
  • message #26712
  • message #26712
Hans-Otto Baral, 11-01-2014 20:59
Hans-Otto Baral
Re : Hyaloscypha sp.
Hi Maren

 think it is H. quercicola. Did you try the Huhtinen key? 

Quercus (ring-pored) and Fagus (scattered minute pores) are easy to distinguish.

Zotto 
Stip Helleman, 12-01-2014 01:15
Stip Helleman
Re : Hyaloscypha sp.
Hi Maren,
I agree with Zotto, was your collection on wood or (inside) bark or perhaps the cambium layer still attached to the wood. in my experience it is always found on the cambium layer, 1 time of Sorbus aucuparia.

cheers
Stip
Maren Kamke, 12-01-2014 19:11
Maren Kamke
Re : Hyaloscypha sp.
Hi Zotto, hi Stip,
thank you for your help, I think you are right with H. quercicola. I do not have the key of Huhtinen, can someone provide me with it.
I read in Raitviir that the hair walls should be dextrinoid in IKL. This reaction didn't appear so I excluded H. quercicola. Maybe it isn't a constant feature, or difficult to see. Otherwise it matches perfectly. The wood is Quercus and indeed the fruitbodies appear on the cambrium-layer on open areas which no longer have the outer layer.
Regards Maren
Hans-Otto Baral, 12-01-2014 20:28
Hans-Otto Baral
Re : Hyaloscypha sp.
Hi Maren

I am sending you the Huhtinen monograph.

The dextriniod reaction of hairs is only seen in Melzer, not in Lugol, maybe this is the reason for you did not see it. And it is not very striking.

Zotto