Sepultaria species growing in sand at Lound

[FungiJohn]

Hello all

This Sepultaria species occurs in large numbers at Lound. Growing in sand. Size typically 6 - 14 mm dia.



Is anyone familiar with this Genus, assuming it is Sepultaria

Any help, comment much appreciated as always

John et al

[Ditiola]

Hi John

It is now called Geopora:

There are two possible species G.arenosa and G.arenicola.

Some books say G.arenosa is up to 1 cm and Garenicola is 2-4 cm

The specimens found are around 1 - 2 cm this causes a problem, although in B&K they say that G.arenosa can grow up to 2cm and that the two cannot be distinguished by fruit-body size, and they can only be separated by spores size

Spore Size
G.arenosa = 22 - 25 x 11 - 15 micons
G.arenicola = 24 - 28 x 12 - 16 microns

All the spores I have measured have been around 23 microns long so I am naming it G. arenosa but I have only measured around 15 spores. Perhaps is you could measure say 100 spores we could be more certain:

It all seems a bit academic and perhaps there should be only one species but who am I to argue with taxonomists

Peter

[FungiJohn]

Thanks Peter

Yes, Geopora

I'll check the spores this evening and report back. I've been busy with an Inocybe after giving up on two more Cortinarius ... Life is too short

John