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06-11-2025 16:50

Rot Bojan

Hello! Yesterday I found a fungus on or near a nee

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

05-11-2025 11:33

Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

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Jaune sur terre
Michel RIMBAUD, 29-07-2013 19:17
Bonjour,

Récolte sur terre d'ornière dans bois de feuillus (Fagus + Quercus).

Apothécies jaune vif diam. 1,5-2mm , coniques à large base, souvent connées à la base par 2 à 5 ou 6.
Pas de subiculum. 

Surface extérieure non poilue, si ce n'est quelques éléments non septés 5x30µ en forme de virgule.     

Asques J- obliquement unisériées, 8,5x80µ.

Paraphyses cylindriques diam. 2,6-2,8µ.

Spores étroitement elliptiques 3,5-4,2x15-17µ, avec 1 septum.

Textura globularis.

J'ai cherché du côté de Inermisia, Byssonectria, Kothlabea, sans succès. 
Merci de votre aide.
Michel  
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Hans-Otto Baral, 29-07-2013 21:48
Hans-Otto Baral
Re : Jaune sur terre
Could be hymenoscyphus epigaeus but I need to see micros in the living state to be more sure.

Zotto
Michel RIMBAUD, 29-07-2013 22:10
Re : Jaune sur terre
Thanks Zotto,
Macro aspect fits very well with this image : http://www.bio-forum.pl/messages/33/408839.html
How can I can see if my collection is in a living state or not ? I don't know.

Michel
Hans-Otto Baral, 29-07-2013 22:19
Hans-Otto Baral
Re : Jaune sur terre
here you can see the living state
https://www.cubby.com/pl/epigaeus/_47e0363d9d6147229fe0ae524f09e790

Your photos are in ?Congo Red and ?Lugol. Take water :-)
Michel RIMBAUD, 30-07-2013 10:03
Re : Jaune sur terre
Hi Zotto,


My previous photos were under R.Congo (little hairs), ans Mlz (hymenium).
I looked at the link you sent : the spores are not septated, mine seem to be septated.

Herunder some new examinations under R.Congo this morning :
Spores 3,8-4,8x16-19µ. Not septated OK.        
Ascis 10,2x115µ with simple rounded root. 

Can we conclude with H.epigeus now ?

Friendly.
Michel
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Hans-Otto Baral, 30-07-2013 11:54
Hans-Otto Baral
Re : Jaune sur terre
The septa in MLZ might be "pseudosepta" caused by confluence of lipid. Now I see living spores with big oil drops whcih excludes epigaeus. Looks rather lile H. /Phaeohelotium monticola which may grow on buried wood fragments. Spore size also bette fits that species.
Michel RIMBAUD, 30-07-2013 21:29
Re : Jaune sur terre
Yes I agree with you, the spores size fits better.

First I didn't believe in P.monticola because it has been collected on soil.

Probably some burried wood debris.   

Thanks for all.
Michel