Vegetation Science Group

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

Vegetation of the Czech Republic

Association VAA11
Ricciocarpetum natantis Tüxen 1974

Ricciocarpetum natantis

Photo on botanickafotogalerie.cz

This vegetation type is dominated by Ricciocarpos natans, a small liverwort floating on the water surface, which is often accompanied by lemnid species. The association is confined to mesotrophic to naturally eutrophic water bodies such as alluvial pools, oxbows and fishponds. It is found at scattered sites from the lowlands to cool colline areas across the Czech Republic.

Orig. (Tüxen 1974b): Ricciocarpetum natantis (Segal 1963) R. Tx. 1972

Syn.: Ricciocarpo-Lemnetum Segal 1963 ms. (§ 1)

Diagnostic species: Lemna trisulca. Riccia fluitans, Ricciocarpos natans

Constant species: Lemna minor. Riccia fluitans, Ricciocarpos natans

Dominant species: Lemna minor, Riccia fluitans, Ricciocarpos natans

Formal definition: Ricciocarpos natans cover > 25 % NOT Alopecurus aequalis cover > 25 % NOT Bidens connata cover > 25 % NOT Calla palustris cover > 25 % NOT Carex vesicaria cover > 25 % NOT Glyceria maxima cover > 25 % NOT Juncus bulbosus cover > 25 % NOT Juncus compressus cover > 25 % NOT Oenanthe aquatica cover > 25 % NOT Phragmites australis cover > 25 % NOT Salvinia natans cover > 5 % NOT Typha angustifolia cover > 25 % NOT Typha latifolia cover > 25 % NOT Utricularia australis cover > 25 %

Source: Šumberová K. (2011): VAA11 Ricciocarpetum natantis Tüxen 1974. 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. 74-76.