Abstract
Review of the sectional nomenclature for the treatment of Carex for the Flora of North America disclosed a number of deficiencies in the currently accepted sectional names. Three sectional names needed typification, including Carex sect. Firmiculmes, lectotypified with C. geyeri, Carex sect. Inflatae, lectotypified with C. breweri, and Carex sect. Leptocephalae, lectotypified with C. leptalea. Several earlier names than those in use in recent monographs were also discovered, including Carex sect. Racemosae for Carex sect. Microrhynchae (Carex sect. Atratae), Carex sect. Thuringiaca for Carex sect. Glaucae, and Carex sect. Dornera for Carex sect. Callistachys. Two sectional names in common use, Carex sect. Hispidae, sect. nov., and Carex sect. Longicaules, sect. nov., were not published with Latin descriptions nor reference to previously published descriptions and are here validly published and precisely circumscribed. Finally, two new sections are proposed to accommodate North American species that did not fit adequately into existing sections. These are Carex sect. Glaucesentes, sect. nov., for four species of large, glaucous clump-forming wetland sedges with papillose perigynia and Carex sect. Hirtifoliae, sect. nov., a monotypic section for C. hirtifolia, a distinctive, pubescent-leaved forest understory species with longbeaked perigynia with nerveless faces.
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