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Podrobná bibliografie
Hlavní autoři: Więcław, Helena, Koopman, Jacob
Médium: Recurso digital
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Vydáno: Zenodo 2026
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On-line přístup:https://doi.org/10.5281/zenodo.19208861
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  • <p><i>Carex</i> × <i>wolteri</i> Gross, Allg. Bot. Z. Syst. 11: 23 (1905) [C. pseudocyperus × C. vesicaria]</p><p><b>Lectotype designated here.</b></p><p>Poland. Ex herb. R. Gross. (B barcode B 10 0296538) (for image see JACQ Virtual Herbaria; available on http://herbarium.bgbm.org/object/B100296538).</p><p><b>Note.</b></p><p>There is no location or date given on the herbarium sheet, but according to the protologue, Gross (1905) found this hybrid in June 1896 near Tiegenhof (Nowy Dwór Gdański), Poland. In addition, on the label is written mh (mihi), which shows that it was Rudolf Gross who named this hybrid <i>C. × wolteri</i> (<i>Pseudo-cyperus</i> × <i>vesicaria</i> = <i>C. wolteri</i>).</p><p><b>Morphology.</b></p><p>This hybrid is more or less intermediate between its parental species. The leaves are 4–5 mm wide and have stomata on the lower surface (hypostomous), like both parents. The inflorescence is 15–20 cm long with 2– 3 male spikes and 1 or 2 female spikes. <i>Carex × wolteri</i> differs from <i>C. vesicaria</i> by its longer female spikes, aristate and ciliate male and female glumes, shorter utricles with a deeply bifid beak. From <i>C. pseudocyperus</i> it can be distinguished by its shorter lowest bracts (in the hybrid, the bracts are as long as or slightly longer than the inflorescence) and shorter, usually sessile 1 or 2 female spikes. The empty utricles are usually dull green-brown and glabrous, 4–5 mm long with a 1.5–2 mm long, deeply bifid beak.</p><p><b>Habitat.</b></p><p>Wetlands, river valleys, swamp forests.</p><p><b>Distribution.</b></p><p>This hybrid is known from Austria, Belarus, Finland, France, Germany, Italy, Norway, Poland, Northwest and Central European Russia, Slovakia, Sweden, and Switzerland (Koopman 2022).</p>