Book contents
- Frontmatter
- Contents
- List of figures
- Preface and Acknowledgements
- Preamble
- Salt-marsh communities
- COMMUNITY DESCRIPTIONS
- Shingle, strandline and sand-dune communities
- COMMUNITY DESCRIPTIONS
- Maritime cliff communities
- COMMUNITY DESCRIPTIONS
- MC1: Crithmum maritimum-Spergularia rupicola maritime rock-crevice community: Crithmo-Spergularietum rupicolae Géhu 1964
- MC2: Armeria maritima-Ligusticum scoticum maritime rock-crevice community
- MC3: Rhodiola rosea-Armeria maritima maritime cliff-ledge community
- MC4: Brassica oleracea maritime cliff-ledge community
- MC5: Armeria maritima-Cerastium diffusum ssp. diffusum maritime therophyte community
- MC6: Atriplex prostrata-Beta vulgaris ssp. maritima sea-bird cliff community: Atriplici-Betetum maritimae J.-M. & J. Géhu 1969
- MC7: Stellaria media-Rumex acetosa sea-bird cliff community
- MC8: Festuca rubra-Armeria maritima maritime grassland
- MC9: Festuca rubra-Holcus lanatus maritime grassland
- MC10: Festuca rubra-Plantago spp. maritime grassland
- MC11: Festuca rubra-Daucus carota ssp. gummifer maritime grassland
- MC12: Festuca rubra-Hyacinthoides non-scripta maritime bluebell community
- Vegetation of open habitats
- COMMUNITY DESCRIPTIONS
- INDEX OF SYNONYMS TO MARITIME COMMUNITIES AND VEGETATION OF OPEN HABITATS
- INDEX OF SPECIES IN MARITIME COMMUNITIES AND VEGETATION OF OPEN HABITATS
- BIBLIOGRAPHY
- PHYTOSOCIOLOGICAL CONSPECTUS OF BRITISH PLANT COMMUNITIES
MC1: Crithmum maritimum-Spergularia rupicola maritime rock-crevice community: Crithmo-Spergularietum rupicolae Géhu 1964
Published online by Cambridge University Press: 01 September 2010
- Frontmatter
- Contents
- List of figures
- Preface and Acknowledgements
- Preamble
- Salt-marsh communities
- COMMUNITY DESCRIPTIONS
- Shingle, strandline and sand-dune communities
- COMMUNITY DESCRIPTIONS
- Maritime cliff communities
- COMMUNITY DESCRIPTIONS
- MC1: Crithmum maritimum-Spergularia rupicola maritime rock-crevice community: Crithmo-Spergularietum rupicolae Géhu 1964
- MC2: Armeria maritima-Ligusticum scoticum maritime rock-crevice community
- MC3: Rhodiola rosea-Armeria maritima maritime cliff-ledge community
- MC4: Brassica oleracea maritime cliff-ledge community
- MC5: Armeria maritima-Cerastium diffusum ssp. diffusum maritime therophyte community
- MC6: Atriplex prostrata-Beta vulgaris ssp. maritima sea-bird cliff community: Atriplici-Betetum maritimae J.-M. & J. Géhu 1969
- MC7: Stellaria media-Rumex acetosa sea-bird cliff community
- MC8: Festuca rubra-Armeria maritima maritime grassland
- MC9: Festuca rubra-Holcus lanatus maritime grassland
- MC10: Festuca rubra-Plantago spp. maritime grassland
- MC11: Festuca rubra-Daucus carota ssp. gummifer maritime grassland
- MC12: Festuca rubra-Hyacinthoides non-scripta maritime bluebell community
- Vegetation of open habitats
- COMMUNITY DESCRIPTIONS
- INDEX OF SYNONYMS TO MARITIME COMMUNITIES AND VEGETATION OF OPEN HABITATS
- INDEX OF SPECIES IN MARITIME COMMUNITIES AND VEGETATION OF OPEN HABITATS
- BIBLIOGRAPHY
- PHYTOSOCIOLOGICAL CONSPECTUS OF BRITISH PLANT COMMUNITIES
Summary
Synonymy
Armeria maritima-Aster tripolium provisional nodum Ivimey-Cook & Proctor 1966 p.p.; Crithmum maritimum rock-crevice community Proctor 1975; Crithmion communities Shimwell 1976 ms.
Constant species
Crithmum maritimum, Spergularia rupicola, Festuca rubra, Armeria maritima.
Rare species
Parapholis incurva, Limonium recurvum (and probably other apomicts of the L. binervosum group, e.g. L. paradoxum, L. transwallianum; see also Ingrouille 1981).
Physiognomy
The Crithmo-Spergularietum has a low-growing, very open cover of scattered vascular perennials rooted in rock crevices. The distribution of the plants and the overall appearance of the vegetation are strongly influenced by the nature of the substrate and, in general, none of the association constants can be said to be truly dominant, though all but Spergularia rupicola may be particularly abundant in individual stands. Plantago maritima is the most frequent associate throughout the association. Bryophytes are rarely conspicuous with only Schistidium maritimum and Tortella flavovirens recorded very occasionally. The only lichens are epilithic.
Sub-communities
Typical sub-community: Crithmo-Spergularietum rupicolae typicum Géhu 1964. The four association constants here account for the bulk of the vegetation cover and, of the associates, only Plantago maritima and P. coronopus attain a constancy above I.
Iula crithmoides sub-community: Crithmo-Spergularietum rupicolae plantaginetosum coronopi Géhu 1964 p.p. Spergularia rupicola is rather less frequent in this sub-community but Inula crithmoides and Plantago coronopus are both constant and the former may be abundant. Limonium binervosum (including its apomicts), Parapholis incurva and Desmazeria marina are all preferentially frequent.
- Type
- Chapter
- Information
- British Plant Communities , pp. 264 - 267Publisher: Cambridge University PressPrint publication year: 2000