For Scleria subgen. Hypoporum , 214 species and infraspecific names were published since the first publication of the name Scleria. These names represent 76 accepted taxa, representing 72 species of Scleria subgen. Hypoporum . Herbarium material of all recognised species was studied, including the type material if available. Synonymy and typification in Scleria subgen. Hypoporum was thoroughly investigated. Fifty-six lectotypes and two neotypes were newly assigned. An identification key for the subgenus is presented. For each species, synonymy and types are cited, a description is provided including information on distribution, habitat and a list of additional specimens examined. Taxonomical difficulties and remarkable observations are added in notes. A useful overview of all published names linking them to their accepted taxon is added.
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