No interactions present.
They are the sporangia which contain the spores, equivalent to the structures under the leaves of most of our ferns. Other clubmosses (e.g. Lycopodium and Diphasiastrum spp.) have them in terminal cones.
recording wildlife with The Recorder's Year on www.hbrg.org.uk/TRY.html.
Thankyou Syrphus, I thought they were probably to do with reproduction but I hadnt noticed them on other specimens Ive photographed before. I hope my ID is accurate for the plant?
The sporangia came off as a little hard bead-like structure with a scrape, I just picked one off to see what it was like.
Lat/Lng: 55.026, -6.054
OS grid ref: NW410776