54.12 - Hard water spring mires

Classification des habitats du Paléarctique (2001)

Description

Spring mires of calcareous, often petrifying, springs of the Palaearctic domaine. Their specialized communities, usually dominated by bryophytes, belong to the Cratoneurion commutati. Characteristic species are the mosses Cratoneuron filicinum, Cratoneuron commutatum, Cratoneuron commutatum var. falcatum, Catoscopium nigritum, Eucladium verticillatum, Gymnostomum recurvirostrae, with Equisetum telmateia, Equisetum variegatum and flowering plants including Cochlearia pyrenaica, Arabis soyeri, Pinguicula vulgaris, Saxifraga aizoides. The associated swamp communities belong to the Caricetalia davallianae and their presence can be recorded by the use, simultaneously with one of the codes of 54.12, of a code of 54.2. Large petrifying springs form tufa cones that constitute singular habitats with several interacting plant and animal communities; they have thus been individualized below.

Correspondances phytosociologiques

Cratoneurion commutati i.a.

Bibliography

Devillers P., Devillers-Terschuren J. & Vander Linden C., 2001. PHYSIS Palaearctic Habitat Classification Database. Updated to 10 December 2001. Institut Royal des Sciences Naturelles, Bruxelles. (Source)

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