Title
Incadendron: A new genus of Euphorbiaceae tribe Hippomaneae from the sub-Andean cordilleras of Ecuador and Peru
Date Issued
2017
Access level
open access
Resource Type
journal article
Author(s)
Wurdack K.J.
Wake Forest University
Publisher(s)
Pensoft Publishers
Abstract
Incadendron esseri K.Wurdack & Farfan, gen. & sp. nov., from the wet sub-Andean cordilleras of Ecuador (Cordillera del Cóndor) and Peru (Cusco, Oxapampa) is described and illustrated. This recently discovered large canopy tree with a narrow elevational range presents an unusual combination of rare morphological characters in Hippomaneae including mucilage-secreting sheathing stipules, conduplicate ptyxis, and large, woody fruits. The broader significance of these characters in Hippomaneae is discussed. The morphology and anatomy of Incadendron were investigated, highlighting its fruit similarities with Guiana Shield endemic Senefelderopsis, and the systematics value of ptyxis variation, which remains poorly studied for the family.
Start page
69
End page
86
Issue
85
Language
English
OCDE Knowledge area
Ecología
Ciencias de las plantas, Botánica
Subjects
Scopus EID
2-s2.0-85041493418
Source
PhytoKeys
ISSN of the container
13142011
Sponsor(s)
To enable our taxonomic studies we thank Alice Tangerini for the botanical illustration, Aleks Radosavljevic for the distribution map, Stanley Yankowski for the shoot tip anatomy and associated images, Alma Solis (USDA) for examining the seed predators, and MO and US for relevant collections. Our taxonomic research was supported by the Smithsonian Institution, and its core facilities of the Scanning Electron Microscopy and Plant Anatomy labs, and the Laboratories of Analytical Biology. For fieldwork we thank the Gordon and Betty Moore Foundation Andes-Amazon Initiative and the National Science Foundation for funding, and the Andes Biodiversity and Ecosystems Research Group-ABERG, in particular Jason Bradford, Norma Salinas, K. Garcia-Ca-brera, A. Nina-Quispe, J. A. Gibaja-Lopez, and L. Imunda. We thank the SERNANP and personnel of Manu National Park for logistical assistance and permission to work in the protected area. We thank Miles R. Silman and the reviewers (Inês Cordeiro and Geoffrey Levin) for their helpful comments on the manuscript.
Sources of information:
Directorio de Producción Científica
Scopus