viridis

Britain 1990–2013 18 1950–1989 0 pre-1950 2 Ireland 1990–2013 0 1950–1989 0 pre-1950 0

he main habitat for this species is on rotten wood, where Targeted survey work during the last 15 years has markedly T it occurs with a range of common species including increased the number of known sites for this species in Lepidozia reptans, Lophocolea bidentata, Lophozia ventricosa, Britain, as well as knowledge of its ecology. However Nowellia curvifolia, Riccardia palmata, Tritomaria exsectiformis, it is unlikely that there has been any real change in the Dicranum fuscescens, , Hylocomium status of the species in the field, though the current, more splendens, Kindbergia praelonga, Mnium hornum, Pohlia enlightened forestry practice with regard to dead wood will nutans, Rhytidiadelphus loreus, pellucida and lead to an increase in available habitat in the future. Cladonia spp. For many years it was regarded as a species of pine logs and stumps but it has now been recorded from Dioicous. Capsules mature in early summer. The wood from a variety of coniferous and broadleaved trees, , particularly the male, is much reduced in including juniper and the root section of a fallen oak (Taylor, size, so that this is invariably recorded only when 2012), as well as from old ants’ nests and organic soil and, capsules are present. It is not known whether the protonema rarely, from the bark of living trees (Taylor, 2010). Buxbaumia is persistent and continually produces and viridis is usually found in shaded and humid sites within capsules. If so, the may be more widespread than woodland, often, but not exclusively, near watercourses. records of -bearing suggest. Altitudinal range: 140–350 m. Confusion is possible with B. aphylla but it is unlikely that 1200 there are any errors in the mapped distribution. <1% 1000 1–10% European Boreal-montane. Much of Europe from northern >10% Fennoscandia and NW Russia south to the mountains of the 800 northern Mediterranean region. Turkey, Caucasus, Georgia and Azerbaijan. Western N America. 600

Altitude (m) 400 G.P. Rothero

200

0 0 200 400 600 800 1000 1200 Distance north (km)

Atlas of British & Irish (1) 429