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Studies in capparaceae XXVII: Six new taxa and a new combination in quadrella

Abstract:

Six new taxa and one new combination are newly established within the genus Quadrella (DC.) J. Presl (Capparaceae s.s.) from the Dominican Republic and Central America. (1) Quadrella alaincana Cornejo & Iltis, a new rare endemic from Azua in the Dominican Republic, (2) Quadrella dressleri Cornejo & Iltis, a second detritophilous taxon described from eastern Panama; (3) Q. incana var. triangularis Cornejo & Iltis, a new variety endemic to coastal Jalisco, Mexico; (4) Q. incana subsp. yucatanensis (Lundell) Iltis, a new combination, centered on the Yucatán Peninsula, Mexico; (5) Q. ltndeniana Cornejo & Iltis, a new species from Quintana Roo, Mexico and endemic to the Yucatán Peninsula; (6) Q. morcnoi Cornejo & Iltis, a new species described from Nicaragua where it is common, but distributed from southwestern Mexico to northern Costa Rica; and (7) Q. morcnoi forma hastata Iltis, a juvenile form. Within the Capparaceae, the genus Quadrella now includes 25 species, 9 subspecies and a variety known from across Mesoamerica and the West Indies.