# New Publication - Taxonomic novelties in New Guinea Uvarieae (Annonaceae) September 12, 2025 HUH Fellows Zacky Ezedin and Jenifer Lopes have a new publication out today in *PhytoKeys*, "****Taxonomic novelties in New Guinea Uvarieae (Annonaceae): Revision of *Pyramidanthe* and new genus records of *Desmos* and *Fissistigma"* **Abstract** The diversity of climbing Annonaceae in New Guinea, the world’s largest tropical island, remains poorly known. Here, we provide a regional taxonomic account for three genera of the Uvarieae tribe, two of which represent new genus records for the island. First, we revise the genus *Pyramidanthe* (formerly *Mitrella*), recognizing a total of seven species. Four are described as new, *P. montana*, *P. nervosa*, *P. oblongifolia*, and *P. parvifolia*, whereas another, *P. silvatica*, is synonymized under *P. schlechteri*. Two additional Uvarieae genera, *Desmos* and *Fissistigma*, are recorded in New Guinea for the first time. *Desmos* is reported with the description of a new species, *D. insolens*, based on a single fruiting collection from the Ramu basin of Papua New Guinea. *Fissistigma*, sister to *Pyramidanthe*, is reported following the discovery of two collections of *F. latifolium* from the Bird’s Head Peninsula of Indonesia. Due to improper typification of the latter species, a neotype is herein designated. A key to the species of *Pyramidanthe* is provided alongside a key to the six climbing Annonaceae genera in New Guinea. This account raises to 21 the total number of Annonaceae genera present on the island. Ezedin Z, Lopes JC (2025) Taxonomic novelties in New Guinea Uvarieae (Annonaceae): Revision of *Pyramidanthe* and new genus records of *Desmos* and *Fissistigma*. PhytoKeys 262: 245-277. Share on:- [ Facebook ](#) - [ Twitter ](#) - [ Linkedin ](#)