Coprinellus truncorum

2 Coprinellus truncorum at Macquarie, ACT

Coprinellus truncorum at Macquarie, ACT - 22 Feb 2024
Coprinellus truncorum at Macquarie, ACT - 22 Feb 2024
Coprinellus truncorum at Macquarie, ACT - 22 Feb 2024
Coprinellus truncorum at Macquarie, ACT - 22 Feb 2024
Coprinellus truncorum at Macquarie, ACT - 22 Feb 2024
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Identification history

Coprinellus truncorum 25 Mar 2024 Heino1

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Collection HL6763 at CANB

1 comment

Heino1 wrote:
   25 Mar 2024
The caps are greyish-orange to orange-brown but over time the outer areas become more greyish (as you see in the second photo). In the centre of the photo with the grey card there is a very immature specimen and at the base of the cluster of three you see another immature (but larger) specimen and those two immature specimens are the subject of the fourth photo. In the fifth photo I show some microscopic detail. Apart from the spores (which measured 8.0-9.6 x 4.8-6.0 micrometres) everything else is naturally colourless, so what you see is some stained material. You see a mix of very dark and not so dark spores- the latter are not fully mature. Cystidia are sterile organs that are found in many (but by no means all) genera of mushrooms. They come in various shapes and colours and usually are not very big. Here the cystidia are quite large, some up to almost 100 micrometres long and, under a 10X hand lens or via a macro lens on a camera they show up as whitish dots in the dark parts of a gill. If you go back to the grey card photo and enlarge the photo you’ll see some fuzzy white dots in the black areas of the gills in the dissected specimen.

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