Revised delimitation of the genus Tetraria, nom. cons. prop. (Cyperaceae, tribe Schoeneae, Tricostularia clade)

Tetraria as currently circumscribed still is a polyphyletic genus restricted to the southern hemisphere. Besides several small independent evolutionary lineages, two larger multispecies lineages have been recognised from South Africa, identifiable by key morphological differences: the c. 30 Tetraria species in the Tricostularia clade tribe Schoeneae have noded culms and a reticulate tunic surrounding the culm base, while the c. 17 Tetraria...