New combinations in the genus Neomarica (Iridaceae) and its segregation from Trimezia on the basis of morphological features

This paper recognizes the genus Neomarica Sprague (Iridaceae), contradicting the treatment by Ravenna placing the genus in synonymy under Trimezia Salisbury ex Herbert. Neomarica is distinguished by its caulinar system as a rhizome or corm, equitant and conduplicate leaves, and conduplicate scapes with a leaflike bract in the apex. which apparently is a sterile prolongation of it. Trimezia is characterized by the exclusive presence of corms, spiraled disposition of cataphylls and leaves, and terete scapes. As a result of this work, nine new combinations and five new synonyms are proposed.