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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

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

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

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

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Melanomma fuscidulum on Aster tripolium ?
Maren Kamke, 19-10-2013 09:15
Maren KamkeHi everybody,

I found this pyrenomycete on Aster tripolium.


Perethecia 0,2 mm wide. Spores brown, verruculose, (18,5-24) 21,15 x 7,45 (7-8) µm, 3-septate with a slightly larger second cell. Asci 100-116x10-11 µm, Ikl porus-reaction negative. Paraphyses cylindrical up to 1,5 µm.


The surrounding host tissue stained partly reddish purple. My guess is Melanomma fuscidulum, but I'm not sure, if the asci really are biseriate or if this fungus appears even on herbaceous plants.


Thanks


Regards Maren


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