Apologies for my late arrival and thank you to Tom for guiding me in using a light aircraft which he had on standby for such eventualities..
Please find attached spore sizes for a few of the finds.
Panaeolus Spore size Me = 16.3 x 12.3 µm ; Qe = 1.3
This fits with the description for Panaeolus papilionaceus (the Petticooat Mottlegill) in Philips (spores 14 – 18 x 10 – 12um). Overhanging gills forming pale, delicate teeth. Cap dark grey almost black when moist. FoS gives Panaeolus papilionaceus spore size as 13-18.5 x 8.2-10.4 x 9.6-13 um; Q: 1.3-1.9(1.2-1.5).
Buczacki gives a spore size of 14-18 x 8-9um Panaeolus papilionaceus var papilionaceus .
John I have a very convincing looking C. rivulosa with faint concentric rings on the cap so i will enter that.
The grey specimen with the depressed centre I think you have it right as C. barbularum. Everything fits perfectly so I will enter that also.
A third white species that I also collected I think is C. candicans although I must admit I have only ever seen it in woodland.
Does your Clitocybe fragrans still hold good or is this No 3?