Marsupella profunda

Marsupella profunda is a saxicolous plant, commonly found on open but shady sites, in wet rock crevices or on slopes. Within Cornwall, western rustwort is generally found growing on micaceous or clay waste substrates which are flat or gently sloping. Some patches occur on granitic rocks, usually where these are soft or crumbling. It appears to be a pioneer species, the largest populations being found on surfaces showing the early stages of colonisation by other bryophytes and by vascular plants. ==Conservation==

This liverwort is rare in all parts of its range and is known from only a few sites in each locality where it is present. The species has several conservation designations. It is listed on Schedule 8 of the Wildlife and Countryside Act 1981, in Appendix 1 of the Bern Convention, Annex II means areas in which it occurs can be declared Special Areas of Conservation, if these areas belong to one of the number of habitats listed in Annex I of the directive. ==References==