A census catalogue of British and Irish bryophytes 2021

Following the publication of a new bryophyte checklist for Britain and Ireland in 2021, this new edition of the Census Catalogue reflects current bryophyte nomenclature and incorporates the numerous updates to the known distribution of British and Irish bryophytes at a local level up to and including 2020

Bryophytes of Frakto Forest (rhodope Mountains, Greece), including <i>Syzygiella autumnalis</i> and the genus <i>Ulota</i> new to Greece

155 bryophytes are reported from Frakto Forest, Greece, parts of which consist of old-growth mixed forest with spruce (Picea abies), fir (abies borisii-regis) and beech (Fagus sylvatica). Many of the species recorded extend into the boreal zone in Europe, and are rare or unknown elsewhere in Greece. Three species, Syzygiella autumnalis, Ulota crispa and Ulota crispula are new to Greece, and there are second or confirmed records for Dicranella subulata, lewinskya breviseta, mnium lycopodioides, seligeria recurvata and solenostoma obovatum. Attention is drawn to a distinctive forest form of Ctenidium molluscum occurring on non-calcareous substrates.</p

BBS Interim Census Catalogue 2011

This interim Census Catalogue includes additions and amendments compiled in 2008, 2009 and 2010, as well as records (debracketers; Hill 2010) that had been submitted to the Biological Records Centre but had not been entered to the database in time to prevent their vice-county being signified as an old (pre-1960) record in the Census Catalogue (Hill et al. 2008). Symbols and conventions are as in the Census Catalogue, except for the addition of the dagger † (also known as an obelisk or obelus) used to denote persisting introductions, i.e. records of introduced species that have been present for at least 10 years but which have not spread to the surrounding environment from the substrate or plant on which they were introduced (Blockeel 2010)

New national and regional bryophyte records, 15

[No abstract available

New national and regional bryophyte records, 9

[No abstract available

Liverworts to the rescue: an investigation of their efficacy as mycorrhizal inoculum for vascular plants.

Pezoloma ericae (D.J. Read) Baral, a widespread mycorrhizal fungus of plants in the Ericales, is known to form intracellular associations with several families of leafy liverworts (Schistochilaceae, Lepidoziaceae, Cephaloziaceae, Cephaloziellaceae) in vitro. The ecological significance of this link between vascular and non-vascular plants is unknown. Fungal symbionts were isolated from rhizoids of the leafy liverworts Cephalozia connivens (Dicks.) Lindb. and C. bicuspidata (L.) Dum. (Cephaloziaceae), as well as from the hair roots of two dominant ericoid mycorrhiza-forming species of European heathlands, Erica tetralix (L.) and Calluna vulgaris (L.). Using pure cultures of P. ericae, we resynthesized liverwort–fungus associations to use colonized liverworts as inoculum which was applied to substrates supporting the growth of heather seedlings and cuttings. Effects were quantified using germination, rooting, plant colonization, plant survival under waterlogging stress and growth in height in experimental systems with and without liverworts and/or fungi. Fungal symbionts growing from liverwort rhizoids readily colonized the hair roots of ericaceous plants to form typical ericoid mycorrhizas. The presence of inoculum-bearing liverworts led to significant increases in plant growth. Erica tetralix was more responsive to inoculation than C. vulgaris. Ericaceous cuttings rooted and survived more successfully when they were coplanted with previously colonized liverwort stems. We demonstrate, under realistic ecological circumstances, that liverworts can deliver mycorrhizal inoculum and improve the establishment of vascular plants. We propose that by providing sources of mycorrhizal inoculum, symbiotic non-vascular plants can contribute to the restoration of plant communities dominated by Ericales plants. This research leads to broader knowledge about the function of ericoid mycorrhizas in ecosystems