Tetraplodon mnioides produces both male and female sex organs - called antheridia and archegonia - on the same plant. It is known as autoicous.
Capsules are common and its spores are mature and ready for dispersal in spring and summer.
Tetraplodon mnioides, together with other dung mosses, depends on flies to disperse its spores.
When flies land on its capsules - attracted by odours that mimic those of dung and carrion - the sticky spores at the mouth of the capsule become attached to the flies and are carried off by them.