I've seen it locally, and it is all limestone here, so I'd guess it probably has more to do with where people have looked for it.Thought this might be of interest to some people. After discovering that Fissidens Fontanus is native to the UK I found a map of its distribution, which correlates remarkably with that of the country's soft water distribution.
Definitely not soft water areas. This is a crude example of water hardness in the UK. Light green denotes soft water, the darker the shade denotes harder water.UK I found a map of its distribution, which correlates remarkably with that of the country's soft water distribution.
I think from 2014.but the distribution map will be out of date
I'd agree, compare this map of clusters to the map above. If you overlaid them the vast majority of specimens collected would fall in medium or hard water hardness areas.the denser clusters are generally in hard or medium water areas.
I still don't get it. It just shows nearly all the sites are in the lowlands.Think you may have misinterpreted my map. It was also a hard water map, the light areas are the soft water. I've overlaid them.
Lol, I did say the map was crude.Newcastle Upon Tyne has crosssd the Tweed invaded and annexed East Lothian and Berwickshire!