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29-12-2025 10:15

Propolis sp. on Pinus sylvestris
Hulda Caroline Holte

Hello, I found and collected this propoloid ascom

29-12-2025 08:30

Ascomycete among bryophytes.
Josep Torres Josep Torres

Hello.A tiny ascomycete sprouting under Juniperus

29-12-2025 09:38

Phaeohelotium on deciduous wood?
Oskari Virtanen

Hi,could anyone help me identify this, I suspect P

24-12-2025 18:12

Orbilia
Ethan Crenson

Hello all, A friend found this Orbilia growing on

28-12-2025 12:08

Karstenia? anamoph?
Margot en Geert Vullings

This possible Karstenia was found on the bark of d

21-12-2025 21:32

Anamorf on decaying leaves of Euonymus japonicus 'Microphyllus'
Pol Debaenst

Hello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1

26-12-2025 21:19

Pithyella chalaudii Priou.; als Bryoprasit auf einem weiteren Wirt gefunden.
Arnold Büschlen

Pithyella chalaudii Priou. Ist als Bryoparasit in

21-12-2025 09:32

Spherical Pyrenomycete
Josep Torres Josep Torres

Hello.A tiny ascomycete found embedded in wood in

18-12-2025 21:17

Two collections of yellowish discs on bare ground
Pol Debaenst

The identification took me to Byssonectria deformi

21-12-2025 12:34

Nectria ??
Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

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Sphaerulina cornicola versus Septoria cornina
Bernard Declercq, 16-07-2025 17:34
Bernard DeclercqHello,

I have trouble distinguishing above mentioned species.
Following paper could be helpful: 

IMI Descriptions of Fungi and Bacteria No. 1583  - SEPTORIA CORNICOLA

Can anyone supply me a pdf of this paper?

Thanks in advance for your help.

Bernard
Björn Sothmann, 16-07-2025 17:43
Björn Sothmann
Re : Sphaerulina cornicola versus Septoria cornina
Dear Bernard,

unfortunately, I don't have access to the paper that you mention, but I have access to a preliminary version of a key on anamorphic ascomycetes on living plants by Friedemann Klenke and Julia Kruse (to be released online within the near future) which keys out the various fungi on Cornus.

Septoria cornina: Conidia lunate or hook-shaped, curved, 4-6 celled, (26-)34-60 µm x 2-2,5(-3) µm, pycnidia 74-102 µm diameter, not rare on C. sanguinea

Septoria cornicola: Conidia nearly straight, (2-)4-7 celled, 24-42(-52) µm x (2-)2,5-3,5(-4) µm, pycnidia 52-120 µm diameter, not rare on C. sanguinea, rare on C. alba, C. mas, C. sericea, C. stolonifera

Sphaerulina cornicola: conidia one-celled, hyaline, (4,5-)5-9(-10) µm x (2,5-)4-4,5(-5) µm, pycnidia 150-220 µm diameter, leaf spots blackish red, later fading in the center, not rare on C. snaguinea, rare on C. alba.

Best,

Björn
Bernard Declercq, 17-07-2025 11:35
Bernard Declercq
Re : Sphaerulina cornicola versus Septoria cornina
Dear Björn,

thanks trying to help me.
There is something wrong with your key. Septoria cornicola is a synonym of Sphaerulina cornicola according to Verkley et al. (2013).

Bernard