Omphaloid fungus

[Leif]

Anyone come across this little brown job:

Near Tilford. 21 March 2010. Omphaloid fungi on sandy soil with moss and lichen on side of steep bank. Cap 1cm slightly depressed to funnel shaped brown smooth, hygrophanous drying cream. Gills broad thick distant decurrent slightly intervenose pale brown. Stem pale brown equal smooth base slightly swollen white tomentose. With Pine. Spores tear drop shaped. Basidia two spored possibly some 3 or 4 spored, clavate. Spores about 9x6um2.

Pictures here.

It looks like an Omphaline/Arrhenia, but it is hard to pin it down as there is so little that is truly distinctive, and there are a lot of similar species in this group.

[SheffieldLass]

Lichenomphalia umbellifera maybe ... (formerly Omphalina erictorum)

[Chris Yeates]

it looks like a basidiolichen certainly and I would tend to agree with Melanie - umbellifera can have 2-spored basidia

Chris

[Leif]

Thanks all. I originally ruled it out on the basis of the macroscopic features (no radial lines, non-scalloped edge, colour) but I guess they might be immature. I'll visit again, maybe tonight, to check how they grow. Certainly the microscopy seems okay.

[Leif]

I checked them this evening, and they have developed obvious radial lines on the cap, which has become more yellow brown, so this is looking more like Lichenomphalia umbellifera.