Here the moss Racomitrium lanuginosum and lichens such as Rhizocarpon geographicum are growing on slate in Penrhyn slate quarry in North Wales.

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Photo credit: © Peter Martin Rhind / Alamy / Afripics
License: Royalty Free
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Keywords: arctic, bryophyte, circumpolar, colonised, cosmopolitan, distribution, fringemoss, geographicum, grimmiaceae, habitats, hemispheres, hoary, lanuginosum, leica, lichens, montane, moss, north, northern, penrhyn, photography, q2, quarry, racomitrium, recorded, rhizocarpon, rock-moss, slate, snowdonia, southern, tundra, wales, woolly