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black sea red data book - Department of Biology

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Synonyms: None<br />

Nymphoidespeltata S.G.Gmel<br />

Common names: Russ: Bolototsvetnik shchitolistny; Ukr: Plavun shchitolystny<br />

Order GENTIAN ALES<br />

Family MENYANTHACEAE<br />

Taxonomic description. A perennial water herb with long creeping rootstock,<br />

holding firm on the bottom <strong>of</strong> the water. Leaves round, heart-shaped, floating on the<br />

water surface. Flowers yellow with deeply divided corolla. Fruit an ovate pod.<br />

IUCN Status<br />

World level: NE<br />

Black Sea Regional level: LR<br />

Subregion level: LR (Ukraine)<br />

Distribution, Habitat type, Critical habitats, Limiting factors. Shallows (30-50<br />

cm depth) with rapid or slow-flowing water with sandy and silty sediments.<br />

<strong>Biology</strong>. Flowering during VI-Vm. Fruit-bearing during Vffl-IX. Reproducing by<br />

seeds and vegetatively.<br />

Population trends. Populations are numerous, but decreasing.<br />

Threats. Drying, pollution and salinisation <strong>of</strong> reservoirs.<br />

77

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