"Steve" wrote in message
...

"shorty" wrote in message
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I've just started getting this in my greenhouse. I reckon from a batch
of bad compost.

http://www.balesfield.co.uk/dump/problem.jpg

It spreads like wildfire.

What is it ??

More importantly how do I get rid of it ??

Looks like Liverwort

Marchantia polymorpha?