Rubiacearum Americanarum Magna Hama Pars LIV. More New Species, Taxonomic Clarifications, and Lectotypifications in South American Palicourea (Palicoureeae)

Abstract

Study of Amazonian and Andean Palicourea Aubl. clarifies the identities, circumscriptions, and typification of some previously described species, and has found some new species described here. For the previously described species, three new circumscriptions, three new nomenclatural combinations, and several new synonymies and typifications are published here: Psychotria arirambana Standl. is transferred to Palicourea, Psychotria calocardia Standl. is synonymized with it, and both names are lectotypified; Psychotria hylocharis Standl. is transferred to Palicourea, and its circumscription narrowed; Palicourea lasiophylla K. Krause is clarified as to identity and lectotypified, and Palicourea villosiflora Standl. is shown to be distinct from both this and Palicourea cornigera C. M. Taylor; Palicourea punoensis Standl. is synonymized with Palicourea attenuata Rusby, and lectotypes are designated for both of these names and an epitype also for Palicourea punoensis; and Psychotria yapacanensis Steyerm. is transferred to Palicourea and Psychotria anartiothrix Steyerm. is synonymized with it. Ten new species are described: Palicourea campinaranana C. M. Taylor from Amazonian eastern Peru and southwestern Brazil; Palicourea cuscana C. M. Taylor from Andean southern Peru; Palicourea dalyana C. M. Taylor from Amazonian western Brazil; Palicourea duende C. M. Taylor from Andean southern Ecuador; Palicourea fallax C. M. Taylor from Amazonian central Peru; Palicourea farfanii C. M. Taylor from Andean southern Peru; Palicourea hooveri C. M. Taylor from Pacific northwestern Ecuador and southwestern Colombia; Palicourea mcdanielii C. M. Taylor from Amazonian northeastern Peru and western Brazil; Palicourea ortiziana C. M. Taylor from Amazonian eastern Peru; and Palicourea santiagoana C. M. Taylor from Amazonian northeastern Peru.