Estudios en las Apocynaceae Neotropicales XXVI : una monografia del género Mesechites (Apocynoideae, Mesechiteae)

A monograph of the genus Mesechites (Apocynoideae, Mesechiteae) is presented. Eight species are recognized (Mesechites acuminatus (Ruiz & Pav.) Mull. Arg., Mesechites angustifolius (Poir.) Miers, Mesechites citrifolius (Kunth) Woodson, Mesechites mansoanus (A. DC.) Woodson, Mesechites minimus (Britton) Woodson, Mesechites repens (Jacq.) Miers, Mesechites roseus (A. DC.) Miers, Mesechites trifidus (Jacq.) Mull. Arg.). In addition, four new synonyms (Echites mapirensis H. Winkl., Mesechites bicorniculatus (Rusby) Woodson, Mesechites pilosissimus Woodson, and Mesechites sanctaecrucis (S. Moore) Woodson), six new lectotypifications (Echites brevipes Benth., Echites tubulosus Benth., Echites breviflorus Urb., Echites repens Jacq., Echites myrtifolins Roem. & Schult., Echites sulphureus Vell.), and a neotype (Echites mapirensis H. Winkl.) are proposed. Keys for sections and species, as well as descriptions, illustrations, distributional data and specimens are provided for all the taxa.