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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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Sclerotinia sp.
Vasileios Kaounas, 15-03-2024 18:26
Vasileios Kaounas
Found in Cupressus semprevirens

stipe 1-1,2 cm

diameter 0,2-0,7 cm

spores 10.3 [11.3 ; 11.8] 12.8 × 5.7 [6.2 ; 6.4] 6.9 µm
Q = 1.6 [1.8 ; 1.9] 2.1 ; N = 30 ; C = 95%
Me = 11.5 × 6.3 µm ; Qe = 1.8

at first I thought it was the trifoliorum, but the spores don't suit me, I also photographed the plants I saw near it.
Hans-Otto Baral, 15-03-2024 20:45
Hans-Otto Baral
Re : Sclerotinia sp.
The one ascus photo is important, it shows 8 equal-sized spores which excludes S. trifoliorum. Alsos spore size should be 12-18 x 6-7.5.  S. sclerotiorum perhaps?