However following a 2005 paper it was decided to separate a group of garlic-smelling species, including this one, off into genus Mycetinis (see that page for more details).

[3][1] An infra-species-level taxon, Marasmius scorodonius forma diminutivus was described in 2017 by Petersen et al.

This form is smaller, growing only to a cap diameter of 1 cm, and it has only been found in urban environments in Washington state.

[3] This mushroom is found from summer to late autumn especially on conifer needles, but also on sticks and other debris, on bark of conifers and deciduous trees, and on grasses and other plants.

[3][4] It is fairly common in northern and central Europe, present in the remainder of Europe, and reported from eastern North America,[9] North Africa and Asia, including Israel.