A capstone on an old gateway post was originally covered with pebble dash. The now-weathered cement provides a calcareous substrate for an intriguing mini-garden.
An old faithful - the yellow splash of a clump of Xanthoria lichen is quite noticeable; but as a herald of spring...
the fruiting capsule of a clump of moss growing at the top of the stone. This, I think, is a member of the Tortula genus. Most probably Tortula muralis - the specific epithet seems appropriate, and it is, after all, a very widely distributed and common moss.
