The section Phaestoglochin (Carex, Cyperaceae) in the Netherlands

All the material of the section Phaestoglochin that is kept in the herbarium of Naturalis Biodiversity Center in Leiden (L), in total 817 collections, has been revised in order to get a better understanding and a more complete overview of the occurrence of the four native species of this section in the Netherlands: Carex divulsa, C. leersii, C. pairae and C. spicata. Carex muricata s.str. proves to be not native in the Netherlands. A key is provided for the identification of (Dutch) plants belonging to this section.