I have another fungus that I am trying to have a clue. I made up my mind that it is a Psathyrellaceae. Interesting is the zonation on the pileus and the its very viscid character. It was growing from a pile of old stems of dumped plants. Maybe wild plants from a nearby field. I see if I have collection for a micro assessment. Any early clues are well appreciated. Thanks!
Viscid brown Psathyrellaceae-like fungus
- Steve_mt
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Hello,
overmature Psathyrella or may be Psilocybe crobula/subviscida or something like that.
Microscopy is needed.
all the best,
Andreas
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Dried ex-siccatum found.
First hint - lamellae become translucid (colourless) when hydrated in KOH. Spore mass colour (spore print) seems to be tobacco brown - just an indication. Now trying to hunt for spores and cheilocystidia
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The microscopy is pretty disappointing. Pleuro absent, cheilo probably also, basidia not distinct and spores are quite translucent, hence I am thinking that this is not a Psathyrella. I try another attempt and I will also measure the spores.
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Here is the section mount of another gill. The edge does not show cheilocystidia unless they got eroded or destroyed during drying / preservation. Interestingly, there are what looks as subglobular cystidia in the gill face, perhaps corresponding to pleurocystidia (?), The largest being 35x 25 um.
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The spores are ovoid, hyaline, smooth, with an eccentric tiny apiculum. Guttulae not seen and some are kinda broken, maybe because they are old spores(?). I can see variability in size too (9-12um long). If necessary I can test if they are amyloid.
(8.8) 9.2 - 11.4 (12.1) × (4) 5.2 - 6.4 (7.1) µm
Q = (1.5) 1.6-1.9 (2.2); N = 17
Me = 10 x 5.6 µm; Qe = 1.8
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Section in Lugol's iodine - spores inamyloid
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Hello,
this could well be Psathyrella melantina (today Coprinopsis I think), which has quite pale spores as far as I remember. Don't know wether the rest would fit, but at least there are some Psathyrella with only faintly coloured spores in microscope.
You should perhaps use KOH 3% to try to regonflated the structures. But may be your specimens are just too destroyed yet.
all the best,
Andreas
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Oh well, yes for the fact that P./C. melantina is very common in Mslta and grows in similar habitat and habit (with spores matching). I forgot that this particular species have pale spores. I did rehydrate the old specimens in 5%KOH before staining and then cleaning in glycerol/KOH mixture. it is a good suggestion, thanks! I will check more images of this species as probably when photographed in situ they were overmature, wet, and weathering (eroding) away. thanks as always !
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I am convinced that it is a washed-out melantina. Thanks a lot for your replies!