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Biantheridion undulifolium (was Jamesoniella undulifolia), Marsh Flapwort, growing through Sphagnum rubellum. Photographed by Des Callaghan during a survey of a site in mid-Wales. It seems quite fussy about which species of Sphagnum it grows through, and was predominantly found with S. rubellum at this site.
The terrestrial form of Ricciocarpos natans (Fringed Heartwort) looks quite different to its aquatic counterpart, being more fleshy and often with a purplish tinge. This photo was taken in a muddy, cattle-poached pingo in Norfolk, where it was growing in great abundance.
Gymnomitrion crenulatum (Western Frostwort) skilfully photographed on the Autumn 2021 meeting in North Wales by Calum McLennan. It doesn't always look as beautiful as this, as the leaf margins frequently become eroded, giving the cushions a whitish appearance.
Sphagnum rubellum (Red Bogmoss) shown here with S. palustre for comparison. S. rubellum is much more delicate, with a stellate appearance when viewed from above. S. rubellum used to be regarded as a subspecies of S. capillifolium, but has been elevated to full species in the latest British list.
This relatively rare, small Orthotrichum was found by Sharon Pilkington, on a sycamore tree next to the road at Marfield Wetland Reserve and quarry site in North Yorkshire. The trees were covered with quarry dust.
Didymodon tophaceus subsp. sicculus was found growing on Lundy Island off the North Devon coast. It is new to Britain and amongst other characters is distinguished from subsp. tophaceus by its nerve being narrower and having shorter cells over the ventral surface. Peter Martin, May 2021
Surely the most beautiful cushion of Bryum alpinum ever seen! Found on the shores of Llyn Dulyn in Snowdonia in May 2021.
Reboulia hemisphaerica (Hemisphaeric liverwort, or Small Mushroom-headed liverwort), spotted in a rock crevice in a disused limestone quarry in the Brecon Beacons by Peter Martin. The stalked structures are the female receptacles that give the species its names.
Microlejeunea ulicina (Fairy Beads) and Metzgeria furcata, spotted by Peter Martin in a churchyard in South Gloucestershire, growing on a yew needle.
Cephalozia curvifolia (rustwort), previously known as Nowellia curvifolia, is even more beautiful close up, with its concave leaves and long pincer-like lobes - and that amazing colour.