54.261 - Middle European black sedge rich fens

Classification des habitats du Paléarctique (2001)

Description

Weakly alkaline, neutral or slightly acid fen communities of the montane to subalpine belt of the Alps and the greater Hercynian ranges, in particular, the Black Forest, the Vosges and the Bohemian Quadrangle, and of neighbouring hills, dominated by Carex nigra, accompanied by calciphile species, brown mosses and basiphile sphagna. They are transitional between the rich fen communities of unit 54.2 and the acidic fen communities of unit 54.4, in particular, of unit 54.421, closely related to the dioecious-yellow-flea sedge communities of units 54.253 and 54.256, of which some of them constitute facies. Similar Carex nigra-dominated or -rich stands occur in more Atlantic regions, in particular, of the British Isles; they are probably best treated as part of the regionally more prevalent unit 54.25.

Correspondances phytosociologiques

Bartsio-Caricetum nigrae (Amblystegio stellati-Caricetum dioicae p.), Parnassio-Caricetum fuscae, Willemetio-Caricetum fuscae

Bibliographie

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)

Matuszkiewicz and Matuszkiewicz, 1975: 86-87; Ratcliffe, 1977a: 297; Dierssen, 1978: 419; Ratcliffe, 1980: units H3f, H3d, H3i; Nordiska ministerradet, 1984: unit 3.6.1.4d; Matuszkiewicz, 1984: 92; Oberdorfer, 1990; Rodwell, 1991b: 97; Pott, 1992: 180; Oberdorfer, 1992a: 235-239, 241-243; Steiner, 1993: 147-148; Påhlsson, 1994: unit 3.3.2.3.