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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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Lachnum (Brunnipila, Dascyscyphus) fuscescens?
Steve Clements, 08-07-2015 14:33
Hi,
This minute fringed disco was abundant on dead leaves of beech and oak (Quercus) (Fagus sylvatica) leaves.
Found 9/6/15. Apothecia almost sessile/very short stalked, opening up in the incubator after a week to 0.85 mm. Hymenium very pale brown/whitish. Fringed by prominent hairs up to 95 x 4-5, commonly 5-septate, brown, minutely hirsute, slightly swollen at the ends (to 6 wide).
Free spores were few, hyaline, 7-8 x 2 (in water) . With some very small guttules.
Asci up to 50 x 5, tips blueing in Lugol, with croziers.
Paraphyses were notable as they extended beyond the asci. Lanceolate, up to 70 x3-4, single septa near base.
Apart from the lack of crystalline matter on the tips of the hairs (lost on preparing specimens?). Oil immersion used for most microscopy.
I thought that Lachnum fuscescens was a reasonable match (is this now Brunnipila?), but I would be pleased to be corrected.
Regards,
Steve


Salut,
Cette minute Disco était abondante sur les feuilles mortes des hêtres et des chênes (Quercus) (Fagus sylvatica)
Trouvé 06/09/15. Apothécies presque sessiles, ils ont ouvert dans l'incubateur après une semaine à 0,85 mm. Hyménium brun très pâle / blanchâtre. Beaucoups de poils éminents jusqu'à 95 x 4-5 avec 5 (?) cloisonnées, brun, minutieusement hirsute, légèrement enflés au niveau des extrémités (à 6 de large).
Spores libres étaient rares, hyalines, 7-8 x 1,5-2. Avec quelques guttules très petites.
Asques jusqu'à 50 x 5, bleu dans Lugol.
Paraphyses étaient remarquables – ils sont plus longues de les asques. Lancéolées, jusqu'à 70 X3-4, cloisons seule près de la base.
Mis à part le manque de matière cristalline sur les pointes des poils, je pensais qu'ils ont Lachnum fuscesens, mais je serais heureux d'être corrigé.
Cordialement,
Steve

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Hans-Otto Baral, 08-07-2015 17:05
Hans-Otto Baral
Re : Lachnum (Brunnipila, Dascyscyphus) fuscescens?
Yes, it is Brunnipila fuscescens. That genus differs from Lachnum not only in the brown hair wall but also in the very short apical hair cells. Crystals are sometimes absent, maybe they were present at earlier development stages? Do you have also young apothecia?
Steve Clements, 08-07-2015 22:35
Re : Lachnum (Brunnipila, Dascyscyphus) fuscescens?
Thankyou Zotto - my colleague took a photo of another specimen covered in white crystals,
Regards,
Steve