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08-11-2025 09:15

Michel Hairaud Michel Hairaud

Bonjour, Pouvez vous m'aider à identifier ce Mol

08-11-2025 00:29

Francois Guay Francois Guay

I found this species in Quebec, Canada, on herbace

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

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A microfungus on Geum urbanum
Steve Clements, 19-08-2014 16:09
Hi,
I had a look at this leaf spot on Geum urbanum. The minute pseudothecia? seem to be immersed, only 0.05mm across (50um) apparently producing brown oval spores 6-7 x 3-4. Looking at Ellis and Ellis, or the asscoiated species list in the FRDBI didn't help. The leaf spot - possibly Ramularia gei - also didn't appear in the FRDBI associated species. Nothing looked likely from plurivorous fungi on herbaceous plants in Ellis and Ellis. Is this a no-hoper?
Steve
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Milanka Tanaskovic, 19-08-2014 23:55
Re : A microfungus on Geum urbanum
Peut-être la forme conidienne (Glaeosporium fragariae) de Gnomonia fragariae.
Voir dans Fungoid Pestes of Cultivated Plants by Cooke ; Journal of the Royal Horticultural Society, vols. XXVII. - XXIX.

Mila
Steve Clements, 20-08-2014 19:14
Re : A microfungus on Geum urbanum
Merci beaucoup pour la réponse, Mila - je vais regarder les informations que vous avez suggéré,
Steve