Summer warmth and a few heavy showers have triggered the growth of some small fungi on our dewy back lawn this morning. They’re going to get trimmed off when I get around to cutting the lawn so I pick them to draw and to take some close-ups using my USB microscope.
The cap which is about a centimetre across is smooth with no trace of ridges. It has dark brown gills, which I’d describe as distant as opposed to close or crowded.
In this photograph the gills are emarginate, meaning that there is a notch where they attach to the stem. But the notch isn’t as clear in this cross section of the cap;
The circular stem is hollow and there’s no swelling at its base.
Spore Prints
The pattern of growth, as far as I can judge by this little group, is trooping. I couldn’t see any trace of a fairy ring starting to form.
I’m taking spore prints which might help narrow down what kind of fungus it is.
My thanks to Steve Clements for this suggestion;
Most likely a Mottlegill (Panaeolus or Panaeolina) – the commonest one on mown grass round my part of Sheffield is Brown Hay Cap – Panaeolina foenesecii – which is supposed to be slightly hallucinogenic. The spores are blackish, and warted (under the microscope). The gills look mottled under a hand lens.
The Collins Guide calls this species Brown Mottlegill and adds that the ‘dark brown-black’ spores are ‘ellip to lemon-shaped’ which is how they look in 200x photograph that I took with my microscope.