Dung Roundhead (Protostropharia semiglobata)
This strange little mushroom was about 90mm tall with a cap only about 12mm wide.
The stem was very straight and narrow with an unusual undulated annulus, sticky but firmly attached.
There seemed to be some black within the gills but white material seems to have settled on the ring.
Cap was very viscid and almost spherical.
Found growing on a grassy and rocky path in a national park.
This is also called Stropharia semiglobata but was named Protostropharia semiglobata - (Batsch) Redhead, Moncalvo & Vilgays (2013)
"'Protostropharia semiglobata'', commonly known as the dung roundhead, the halfglobe mushroom, or the hemispheric stropharia, is an agaric fungus of the family Strophariaceae. A common and widespread species with a cosmopolitan distribution, the fungus produces mushrooms on the dung of various wild and domesticated herbivores. The mushrooms have hemispherical straw yellow to buff-tan caps measuring 1–4 cm , greyish gills that become dark brown in age, and a slender, smooth stem 3–12 cm long.. more