Studies in Neotropical Araliaceae. Three new species of Sciodaphyllum P. Browne (Araliaceae) with globose capitate inflorescences from Ecuador and Peru - Sorbonne Université
Journal Articles Brittonia Year : 2021

Studies in Neotropical Araliaceae. Three new species of Sciodaphyllum P. Browne (Araliaceae) with globose capitate inflorescences from Ecuador and Peru

Abstract

In the genus Sciodaphyllum (Araliaceae), some species have paniculate inflorescences with globose capitula as their terminal units, in which numerous tightly packed flowers develop into fruits that are appressed to each other. This informal assemblage, referred to as the "globose-capitate group," currently includes 20 described species. Three new species with this distinctive morphology are described and illustrated with photographs of plants in the field or scans of herbarium specimens: S. basiorevolutum from northern Ecuador at the border of Carchi and Sucumbíos provinces; S. chachapoyense from the department of Amazonas, Peru, known only from the province of Chachapoyas; and S. rufilanceolatum from the province of Carchi, Ecuador, north of Maldonado along the border with Colombia, and in the Cerro Golondrinas. For each new species, a distribution map and a preliminary risk of extinction assessment (following the IUCN Red List criteria) are provided; S. basiorevolutum is assessed as Vulnerable, whereas S. chachapoyense and S. rufilanceolatum are both considered to be Endangered.
Fichier principal
Vignette du fichier
Rodrigues-Vaz&al2021_Studies in Neotropical Araliaceae. VIII. Three new species Sciodaphyllum P. Browne (Araliaceae) with globose capitate inflorescences Ecuador Peru (1).pdf (2.28 Mo) Télécharger le fichier
Origin Files produced by the author(s)

Dates and versions

hal-03439405 , version 1 (25-11-2021)

Identifiers

Cite

Carlos Rodrigues-Vaz, Gregory M Plunkett, Porter P. Lowry. Studies in Neotropical Araliaceae. Three new species of Sciodaphyllum P. Browne (Araliaceae) with globose capitate inflorescences from Ecuador and Peru. Brittonia, 2021, 73 (3), pp.262-273. ⟨10.1007/s12228-021-09661-0⟩. ⟨hal-03439405⟩
53 View
87 Download

Altmetric

Share

More