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Growing in soil. Cup-shaped at first broadening out later. Pale on the outside, becoming brown inside later. That could describe many Peziza fungi. These, however, have a distinctly mushroomy smell: I think this is a strong indication of P. repanda; the others have little or no smell. Good to see you here! Hopefully someone will be able to give you advice. Cup fungi are not an area I know much about. Mark
Hi, and welcome to UK Fungi. It’s always useful to mention the actual sizes of finds, as it’s often difficult to decide from photos.
Assuming that your romer grid card is about 9cm in overall width, that would make the large fruitbody about 10-11cm.
So, with that sort of size and mid brown hymenium (on mature specimen), creamy-fawn finely-granulate exteriors, and darkening-“scalloped” margins, I’d say that
P.repandawas a good possibility. Regards,
Mike.
Hello, good to see you here unfortunately this is a tricky first question you pose. Even with microscopy (generally absolutely necessary with pezizoid species)
P. repanda(if it actually exists as a separate species) lies within a very difficult area. There is a very useful (if necessarily very technical) open-source paper here:
http://dash.harvard.edu/bitstream/handle/1/3153301/Pfister_PhylogeneticDiversityCore.pdf?sequence=1 ” class=”bbcode_url”> http://dash.harvard.edu/bitstream/handle/1/3153301/Pfister_PhylogeneticDiversityCore.pdf?sequence=1 “
Based on ITS and morphology, we found no justification for recognizing more than one species in the ‘P[ eziza] variacomplex’, including 27 specimens that have been referred to under the names P. cerea, P. micropusand P. repanda, from an array of substrates and different geographical areas. Morphological characters previously used to delimit specieswithin this complex, such as colour variation of the apothecia, presence or absence of a stipe, stratified or non-stratified medullary exciple (or thickness of the excipular layers), cell types in the outermost exciple and moniliform vs filiform paraphyses were not correlated with the subgroups supported by ITS analyses and appeared to be plastic[my underlining].
So it would appear that effectively all previous collections (if accurately named as what was understood by those four names at the time) are best referred to as “
Peziza variacomplex”. This is one of the areas where molecular studies have shown that traditional taxonomy based on macro- and to some degree micro-morphological characters (such as, in this instance, size, colour, granulate or non-granulate exterior and indeed smell) cannot tell the true picture of species delimitation. I assure you we will usually be able to provide rather more positive responses in the future
Best wishes
Chris
http://www.ascofrance.com/search_forum/36435http://www.ascofrance.com/search_forum/36435” class=”bbcode_url”> ! As always Mike and Chris – excellent advice! Thank you both for your contributions as below ‘the more I know the more I realise I don’t know’! I was aware this one was not easy and changes of opinion within the Mycological Community.
Mark
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