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20-03-2026 12:53

Stefan Blaser

Hello everybody, In the field, from distance, my

20-10-2017 09:23

Garcia Susana

Este otro crecía en el mismo trocito de madera qu

20-03-2026 16:16

Edvin Johannesen Edvin Johannesen

These 0.5 mm diam. acervuli were breaking through

19-03-2026 19:34

Filip Fuljer Filip Fuljer

Hello everyone,a few days ago I collected this str

19-03-2026 18:25

William Slosse William Slosse

Good evening everyone, On 18/03/26 I found a few

17-03-2026 10:09

François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

19-03-2026 15:58

Stefan Blaser

Hello everybody, I hope for some hints... Macro:

19-03-2026 17:50

Enrique Rubio Enrique Rubio

Hi to everybodyThese thiny, blackish pseudothecia

18-03-2026 13:09

Khomenko Igor Khomenko Igor

I recently examined Celtis occidentalis branches

17-03-2026 19:41

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

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Un Hyaloscypha proche de H. herbarum
Michel Hairaud, 22-02-2013 12:01
Michel HairaudBonjour à tous, Hi to everyone, 

Je viens d'étudier ce Hyaloscypha récolté hier sur bois de Pinus .
Apos  0,2-045 mm blanc pur 

Spores allongées, souvent un peu courbes, guttulatio (OCI) 3-4, 12-16 (20) x 2,8 -3,2 (3,5) 
Asques IKI + bleu , crochets 0, 67 -75 x 7-8

Poils de marge  45-67 x 5-6 et diminuant jusqu'à 1 µm au sommet. amas de résine rares.  

Les caractères coiencideraient avec H. herbarum mais la taille des asques est beaucoup plus grande que celle donnée dans la monographie de Seppo .

Merci de vos avis
Amitiés
Michel
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Hans-Otto Baral, 22-02-2013 18:19
Hans-Otto Baral
Re : Un Hyaloscypha proche de H. herbarum
yes, I agree with herbarum and too long asci (even when considering the shrinking effect. But also the karge oil drops in the spores are unknown in herbarum.

What you  could do is to measure the asci also in the dead state, to better compare with Seppo. Any photo of the ascus base?

Zotto
Michel Hairaud, 22-02-2013 21:57
Michel Hairaud
Re : Un Hyaloscypha proche de H. herbarum
Thank you Zotto for your answer . 

Yes I agree with the special guttulation of this collection . I tried in several apos and they 're all the same. 

Of course asci killed by KOH for example shorten to 50 - 55  µm . 

Here is an image of ascus base .  

I suppose some new species have been created since Seppo's monography but I did not searched for it. May be someone would help with references ? 

Amitiés
Michel 
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Hans-Otto Baral, 22-02-2013 22:11
Hans-Otto Baral
Re : Un Hyaloscypha proche de H. herbarum
yes, very clearly without croziers!

I don't think that new species have been described in Hyaloscypha. 

In IF I see albohyalina var. monodictys and H, paludicola. Did you try Raitviir's 2004 key?

With 50-55 µm the asci are then not longer than  in herbarum.

Zotto
Michel Hairaud, 22-02-2013 22:31
Michel Hairaud
Re : Un Hyaloscypha proche de H. herbarum
Yes I tried Raitvir's key too . 
No better clue, the ascus size is the same as in Huhtinen's and  hairs and spores shapes are different in H. tigillaris (which has thesame ascus length, IKI reaction and ca spore guttulation , but not the shape). 

Michel