First up was a fat thalloid liverwort which turned out to be Pellia epiphylla. This is a very common liverwort in the UK and our only monoecious one apparently. The "lady parts" (archegonia) are readily visible towards the tips in the large photo, and the male parts are discernible further up on the midrib on closer inspection (see micro photo further down).
Second on the tree stump was a patch of diaphanous Rhizomnium punctatum - Dotted Thyme-moss. Presumably the "dotted" epiphet comes from the male parts, none of which I saw (yet), but I really don't know. I never saw any dots. Just a nice paddle-like leaf with a nerve stretching to not quite the tip and a healthy helping of (untoothed) border.
Lastly, and only noticed at home, was a tiny leafy liverwort clinging to the big thalloid one. I think at the moment that it's Lophocolea heterophylla - Various-leaved Crestwort, but I'm still looking into it.
|The double-toothed Atrichum undulatum|
|Smorgasbord, with Mnium hornum for good measure|
Atrichum undulatum - so many teeth the leaf margins can't contain them
Pellia epiphylla - the male parts further up the plant on the midrib
Rhizomnium punctatum - cute pointy bit on the leaf tip (I forgot its proper name for the moment), and the smooth fat-bordered margin