Nothing very exciting by way of photograph this week, just a patch of Common Liverwort, Marchantia polymorpha which I found several years ago growing among the street paving in Pinner. It was around 150mm across so had clearly been there for quite some while. It is showing a good crop of gemmae cups (which can release new offshoots when hit by raindrops) and just an odd sexual body (top right but you’ll need the full sized image to spot it), which from its shape suggests this is probably a male plant.
Common Liverwort, Marchantia polymorpha
Pinner, September 2010