A blackish-brown species, of variable form.  The stalk has a velvety appearance due to minute bristly hairs that are visible under a hand lens

other earthtongues.  There are several other species of Trichoglossum in the UK, all rare

microscope

Photograph showing detail of bristly stalk as well as fungus in habitat.  Microscopic examination may be needed. We advise that you consult an expert before submission to NatureSpot, and retain a specimen in case this is needed for verification

unimproved short grasslands, including lawns

https://www.first-nature.com/fungi/trichoglossum-hirsutum.php