Vegetation Science Group

Department of Botany and Zoology | Faculty of Science | Masaryk University

Vegetation of the Czech Republic

Association VDB04
Pilularietum globuliferae Tüxen ex Müller et Görs 1960

Pilularietum globuliferae

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This vegetation type is dominated by the tiny wetland fern Pilularia globulifera, which forms dense low-growing stands in shallow oligotrophic to mesotrophic water bodies with fluctuating water table. It was recorded in two fishponds in the Třeboň Basin in the 1930s, but disappeared soon afterwards. A new locality was found in the year 2007 in the Karhov fishpond near Studená in the Jihlavské vrchy Mountains.

Orig. (Müller & Görs 1960): Pilularietum globuliferae Tx. 55 n. n.

Syn.: Eleocharitetum acicularis Koch 1926 facie Pilularia globulifera Ambroľ 1939 (§ 3c), Pilularietum globuliferae Tüxen 1955 (§ 2b, nomen nudum)

Diagnostic species: Carex bohemica. Eleocharis acicularis, Pilularia globulifera

Constant species: Carex bohemica. Eleocharis acicularis. Equisetum fluviatile. Gnaphalium uliginosum. Persicaria lapathifolia, Pilularia globulifera, Rorippa palustris. Rumex maritimus

Dominant species: Persicaria lapathifolia, Pilularia globulifera

Formal definition: Pilularia globulifera cover > 5 % NOT Carex rostrata cover > 25 %

Source: ©umberová K. (2011): VDB04 Pilularietum globuliferae Tüxen ex Müller et Görs 1960. In: Chytrý M. (ed.), Vegetace České republiky. 3. Vodní a mokřadní vegetace [Vegetation of the Czech Republic 3. Aquatic and wetland vegetation]. Academia, Praha, pp. 293-296.