No end to endemism – contributions to the difficult Nasa Weigend Series Alatae (Loasaceae). A new species from Peru and the rehabilitation of “ Loasa” calycina Benth.

By

Henning, Tilo
Allen, Josh
Montesinos Tubée, Daniel
Rodríguez Rodríguez, Eric F.
Peña, José Luis Marcelo
Acuña-Castillo, Rafael H

Type

Article

Date of Publication

2025

Original Publication

PhytoKeys

Volume

252

Pages

163--186

Subjects

Amotape-Huancabamba zone , Andes , Cajamarca , cloud forest , Cornales , iNaturalist , Loasoideae , narrow-endemic

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.252.141635

 

Abstract

A new species of Nasa ser. Alatae (Urban & Gilg) Weigend from Northern Peru is described and illustrated. Nasa katjaesp. nov. was at first encountered by an observation on iNaturalist and subsequently collected in the humid Andean forests near Colasay in the province of Jaén (Cajamarca, Peru). Whilst comparing the new species with closely related Nasa loxensis (Kunth) Weigend, a taxon widespread in Southern Ecuador (and tentatively adjacent Peru), a reevaluation of the status of earlier synonymized Loasa calycina Benth. became necessary. Consequently, Nasa calycinacomb. nov. is rehabilitated at species level and Nasa loxensis is redefined.