I am linking to a post o the main forum topic in case some dung-specialists only check this corner.
Follow the link below.
I was surprised that when I search for "fimicola", there were no results. Is it not reported from Germany / central Europe?
Steve
Very interesting and tiny mushroom. I can't help just wanted to say impressive. Hope you get it identified and I think it is rare finding. good job
I forgot to include a few more photos of when it is hygrophanous dry. I guess i need to offer the microscopy for this one... but let's see if I get some feedback based on the macro-morphology
Thank you so much xxx
Take care everyone, love this group!
Steve
A Coprinoid fungus on horse dung, highly hygrophanous, semi-spherical pileus, caramel brown with a beige rim when wet, then whiter and zonated when dey. I thought of Panaeolus fimicola. Thank in advance for your kind comments on this.A sample is in the fruidges
Cheers
Nice fungus and widespread population on horse dung sitting amongst a grassy lawn. I have identified it from the macro aspect as Panaelous papilionaceus s.l. (the length of the spores will tell the var). Hope it is OK.!!!
L..G.
Stephen / Gozo (Malta)
In the first photo on the left I think that is a decaying example which gave me the guidance of being an annual polypore.
I can monitor regularly (this is a park near to work) and see what happens when they mature. If they decompose and die (=annual) it might be I. dryophila. They were attached to bark and even cortex of living holm oak trees
I try to provide images of the context. So if I see septation that's a big clue ?
OK, I trust you guys. I try and slice the other one although its older. I show you the spores too tomorrow or Tuesday
THANKS!
It is matching quite will with Parasola leiocephala = P. lactea .
12. Basidiospores narrowly ovoid to ellipsoidal, sometimes
ovoid, Qavg = 1.15–1.60 ................................ 13
12′. Basidiospores ovoid, rounded triangular, or subglobose
...................................................................... 14
13. Basidiospores mostly ellipsoidal to hexagonal, Qavg
= 1.15–1.5, pleurocystidia mostly
utriform ....................................................... P. plicatilis
13′. Basidiospores broadly ellipsoidal, often ovoid to
broadly hexagonal, Qavg = 1.25–1.6, pleurocystidia
often lageniform .......................... P. plicatilis-similis
14. Average length of basidiospores under 10.5–11 μm,
basidiospores often remain immature
.................................................. P. lactea (= P. leiocephala
14′. Average length of basidiospores >11.5 μm, as usual
fully mature, dark blackish brown, pileipellis and
basidia filled with strongly refringent, yellowish
granules ................................................P. lilatincta s.l.
Thank you Tuppie... You are right about the colour, but I cant find a better option for my very very limited knowledge on boletes. We see what Beorn opines 
Happy Sunday to all
Stephen
And yet another Xerocomus under Quercus ilex in a park. No signs of reddening in the context of the entire stipe and pileus. No blueining on touching the pores or cut the basidiocarp. There is a scent of something but I cant tell, like aromatic. Basidiocarps quite large 9 cm the largest one. Is X. subtomentosus a good option here. I have half the specimen in the desiccator and half for the spore print / fresh. Habitat match nicely - oaks in parks!
Micaeus is usually a bit beigeOn dead trunk of Q. ilex. Which Coprinellus please? Should be between micaeus and saccharinus!
I found some 5 polypores attached to the bark of living Quercus ilex (Holm oak) trees in a park, somewhat damaged by Xmas lights decorations. The core is composed of 2 (or 3) layers. The hymenophore is soft. I managed to see few spores too, apparently thick walled. The context stains deep reddish-brown with 4% KOH. Could you help in the ID please?. Young Inonotus (Inocutis) dryophilus ?
Is anyone familiar with yellow or bleached Parasola sp I found in calcareous limestone soil, exposed to sea rush, terrestrial and close to low weeds and grasses? The spores are subspherical with a tapering end, pore present. Cheilocystidia abundant, inflated ellipsoid or subspherical hypha, rather variable. Pilleipellis sphaeropedunculate hyphae. Suggestions always welcome.
Karl, I was reading the note on Atlas grzybów Polski - Mushrooms and Fungi of Poland stating:
Romagnesi (1941: 126) described C. curtus Kalchbr. f. macrosporus which has somewhat larger spores (10.7-14.7 x 6.5-8.5 µm). M. Lange & A.H. Smith raised this taxon to the rank of species, naming it C. heptemerus (see under that name).The spores with average length 13.0 um and the larger spores reaching 14.5 um I was thinking if to choose C. heptemerus, but then when I saw the images of the pileocystidia and caulocystidia lacking the capitate head I firmed my opinion on C. curtus. Yet the difference of these cystidia are not highlighted in the remarks/distinction comments on that site. Anyway this finding is clearly C. curtus - thanks for your confirmation 
Hi Ulla, thanks for your suggestion. I always thought ofP. cinereum as with a gregarious habit, but I saw some images with vermicular habit now.
Physarum cinereum Slime Mold - Stock Image - C007/6152 - Science Photo Library
I will check and revert back
OK Bjorn - thanks for the small statistics lecture and sharing yr knowledge. I know a bit more behind these formulas now. Cheers!
Hi, I found this delicate mushroom in calcareous soil with grasses and sparse weeds close to manure. The pink-gilled and free gills, the smooth pileus and esp. the prominent Volva indicates Volvopluteus or Volvariella. The size of the pileus is about 18mm across and the individual is 30mm tall. I excluded V. gloiocephalus for the small size. I am a bit left without many options here. The cap had fine greyish-brown radial striations (or fibrils). Spore print light brown. Pileipellis a cutis of cylindrical cells of various widths ending with slightly swollen ends. I examined a 3-day old specimen and the lamella were a bit decaying out but spores ovate and with a dextrinoid wall (if I am judging right), basidia pretty large 2 and 4 spored and Cheilocystidia were not numerous but I saw a few that are utriform and short, not much larger from the
What else it could be from gloiocephalus (which is not)?
By using logic sense I would use the one which has the most species in your region of study. Saying that they are all outdated books and in mycology (unlike plants) they lose a lot of value regards identification, validity, and esp. nomenclaure. Yet they are always better than nothing at all. Roger Philips is a well known mycologist.
I don't know if I have mentioned it, but between the two, I chose populin because it is most recorded so the odds I found something extremely rare recorded from Japan is too much unreal and not plausible. As you said, these might even be the same species and define just a bit of variety within the species. Not even the monograph was able to tell apart with any confidence. Thanks for all your correspondence about this matter
1. The interval [Min, Max] is centred around the average of the sample and there is a 95% probability that a random spore will have a size inside this interval.So 95% of the sample have spores within this range; some (5%) larger or smaller
OK
2. The interval [m, M] tells us that there is a 95% probability that the average spore size is inside this interval.
This I haven't understood is it like a range of an average? ??
I was not aware there is a menu with the right mouse button, but both classical and statistical use the formula
(Min) Range (max) while I wished (min) mean (max).
and thank you for confirming Karl
I took that sect. from Melzer key... maybe I have an old version ?