Pan. cyanescens and Cop. cyanescens are the same mushroom. The lumpers will call them Pan. cyanescens, the splitters will call them Cop. cyanescens.
If you look at all the mushrooms refered to as Pan. cyanescens or Cop. cyanescens microscopically, they are identical. Macroscopically, you will see great variability based on substrate composition, and ENVIRONMENT(geography/season). There are lots of Pan./Cop. cyanescens varieties. They look very different macroscopically on similar agar media composition, and similar fruiting substrates. They all look the same microscopically.
Pan. tropicalis or Cop. tropicalis also looks similar macroscopically to the Pan/Cop. cyanescens, and microscopically. Exception microscopically is they are PRIMARILY 2-spored versus four spored, and have internally granulated spores. They have a completely different mating system then Cop/Pan cyanescens. Each spore can contain both haploid nuclei within the spore. No mating is necessary. Anastomosis between dikaryons results in more vigourous fruiting strains.
Pan/Cop. cambodginiensis is a third distinct species from the two above. It is seperated by spore size, pleurocystidia size, cheilocystidia size, and minor variances in it's macroscopic appearance. I.e., it remains darker then the other two species at maturity under humid conditions. Under dry conditions, macroscopically it looks just like a cyanescens.
Overall size range is slightly different between each of these three species. Both macroscopically and microscopically.
A fourth species Pan./Cop. bispora resembles the cyanescens complex macroscopically, and microscopically, but is Exclusively 2-spored and thus Homothalic in it's mating strategy. Similar to tropicalis in this regard, but it's spores lack the internal granulations(I would assume).
Mr.G I don't doubt you have several Strains of cyanescens growing in the various fields you pick. Seasonal, substrate variation has probably caused various strains to emerge from any original Species that was introduced. The same goes for the cubensis all over the state of Florida. The ones that grow on the East coast are a tad different then the ones that grow on the west coast. both of these are a tad bit different then the ones that grow in middle Florida(Gainesville).
Even within the same Field, during different times of the year, I have noticed variability between cubensis.(most of which was due to environmental stimuli), but not all of it. I have isolated different STRAINS growing in Jonesville, Micanopy, and Gainesville. Three places seperated by vary little distance. I have3 found ones that produce abundant small mushrooms that continuosly flush, and others that grow large and have distinct flushes. They looked different at maturity.
I think the variability is STRAIN and not Species between your COP/Pan finds.
This has been driving me nuts for a good deal of time. I have looked at the spores of your tropicalis, the cyanescens, and the cambodginiensis, under a microscope and they all seem to be different. I have not yet looked at the cystidia , but intend to shortly. After doing this, I will definetly be trying to determine compatibility between the three SPECIES being circulated on the OMC. I am very curious as to the outcome, and trying to put an end to this CONFUSION.
I can say this with absolute certainty, the cyanescens complex is VAST. Each and every strain(geographic) is different on nutrient agar. They LOOK different. So do each of the three species.
A cop. cyans growing on stable manure in the winter is gonna look different from the same Cop. cyans growing on cow manure in the spring. The differences in substrate alone will cause some variance, but even more so, the TEMP/HUMIDITY differences will have great influence.
I posted pictures of the cambodginiensis that is in circulation in the OMC. Some were grown in high humidity at warmer temps, and some were grown in lower humidity at cooler temps. THEY LOOKED LIKE DIFFERENT MUSHROOMS growing on the same substrate.
The pictures are around here somewhere. Look up cambodginiensis in the search forum.
All the species information came from Stametes and Arora, and the research they are quoting. Just Read their books carefully, or the actual journal articles they are refrencing.
MJ of course is the source of some of the information they are quoting, so disputing him, on information he has contributed, would be a bit pointless.
I would be happy to view any and all STRAINS/SPECIES spores you have, under a scope. Anything else would take some time, because spores are not the only thing you need to ID. Cystidia and eventually compatibility studies would be required, and that takes TIME.
The majority of people on the OMC could care less. If it looks different that is good enough for them. They would be absolutely right. No one here is publishing in a scientific journal, with exception to MJ. At least not openly stating so. I certainly am not, and my interest is purely for interest sake. It would be nice to KNOW what we are in possesion of, but they only way to KNOW is to find out yourself, or listen to those that have. Of course you have to believe them!!!!!!
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