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22-04-2026 01:06

Neonectria ou thelonectria ?
Richard VALERI Richard VALERI

Bonjour à tous.Je vous présente cette Nectria s.

21-04-2026 22:14

Peziza depressa?
Margot en Geert Vullings

This cup fungus was found on April 10, 2026, on lo

21-04-2026 21:00

Hymenoscyphus sp
Sylvie Le Goff

Bonjour à tousJe sollicite votre aide pour cet as

21-04-2026 13:36

Wentiomyces-like on Salix
Gernot Friebes

Hi,I am out of ideas for this one. I collected Sal

21-04-2026 13:19

Lophodermium on Typha
Gernot Friebes

Hi,this Lophodermium on Typha has ascospores measu

21-04-2026 13:05

Hyphomycete on Typha
Gernot Friebes

Hi,this hyphomycete feels familiar but I was not a

20-04-2026 22:00

Trichobolus dextrinoideosetosus?
Malcolm Greaves Malcolm Greaves

These pale yellow, hairy ascos were growing on cul

19-04-2026 21:23

Hairy anamorph on plywood with beaked curved conidia
Steve Clements

Bonjour, I found this anamorphic fungus on old pl

19-04-2026 20:46

Anamorphic fungus on plywood
Steve Clements

1 mm diameter approx spherical conidiophores on pl

12-04-2026 17:56

Seeking genus for 1 – 3 septate spored asco. on herb Nepteta cataria (Mint).
Hardware Tony Hardware Tony

Found on dead stems in February earlier this year

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Geopora
Malcolm Greaves, 07-10-2019 16:19
Malcolm Greaves
Hello

Is anyone able to tell from these photos if this is G arenicola or some other species of Geopora. The part submerged cup was in damp soil. The spores were on average 24x13 with two large guttules. Paraphyses slightly swollen at the tip.

Thanks

Mal
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Josep Torres, 08-10-2019 22:39
Josep Torres
Re : Geopora
Hola Mal, creo que la Geopora arenicola debería presentar esporas de mayor tamaño, con un tamaño esporal parecido tengo un estudio que determiné que se trataba de Geopora cervina, en mi caso las esporas daban unas medidas de: 
(21.1) 22.6 - 25.2 (28.9) × (10.8) 11.7 - 12.9 (13.4) µm
Q = (1.8) 1.9 - 2.1 (2.2) ; N = 20
Me = 23.9 × 12.2 µm ; Qe = 2
Aunque de media las medidas parecen encajar, no me cuadra la morfología de las esporas de tu trabajo.
Te dejo una imagen de mi estudio de la supuesta Geopora cervina.
Saludos cordiales.

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Malcolm Greaves, 09-10-2019 01:13
Malcolm Greaves
Re : Geopora
hola Josep

I will try and get more spores and get a better average.

The sizes do seem to vary between the different keys I have.

Mal
Malcolm Greaves, 09-10-2019 17:31
Malcolm Greaves
Re : Geopora
Hola Josep

From a spore drop I ended up with 23.06-25.38 x 12.44-13.97 and an average 24.23 x 13.38. Q value 1.81. These figures don't fit with G cervina or G arenicola in Ascomiceti d'Italia. Could be either species in Spooners Geopora in the UK. Nordic Macromycetes has the width as 10.5-13 for G cervina and 10-13.5 for G arenicola.

Very close but unless there is a new study or key out there G arenicola does look the closest but only by a very small margin.

Thanks for your input.

Mal