A new combination in Sagotia (Euphorbiaceae) with an updated key for the genus

Author(s)

Secco, Ricardo De S. ^[1] ; Marques Da Silva, Otavio Luis ^[2] ; Cordeiro, Ines ^[2]

Affiliation

^[1] Museu Paraense Emilio Goeldi, Ave Magalhaes Barata 376, BR-66040170 Belem, Para - Brazil

^[2] Inst Bot, Nuleo Pesquisa Curadoria Herbario SP, Ave Miguel Stefano 3687, BR-04301902 Sao Paulo, SP - Brazil

• Document type: Journal article
• Source: PHYTOTAXA; v. 394, n. 3, p. 225-229, MAR 1 2019.
• Web of Science Citations: 0

Abstract

A new combination in Sagotia, Sagotia heterocalyx, based on Sandwithia heterocalyx is herein proposed once this taxon shares more similarities with Sagotia (such as flowers without nectaries, the pistillate ones with calyx lobes united only near the base and thick styles, and staminate flowers with sessile to subsessile stamens) than with Sandwithia (whose flowers arc provided with nectaries, the pistillate ones with calyx lobes united for more than half of their length and thin styles, and staminate flowers with conspicuous filaments). Comments on morphological affinities between Sandwithia and Sagotia and an updated key for identification of species of these two genera are also presented, along with the lectotypification of Sandwithia guyanensis. (AU)

• FAPESP's process: 13/26501-6 - Taxonomic revision, phylogeny and biogeography of Astraea Klotzsch (Euphorbiaceae)
• Grantee: Otávio Luis Marques da Silva
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 17/06171-2 - Evolution and biogeography of Astraea (Crotoneae, Euphorbiaceae) and phylogenetic relationships within Crotoneae
• Grantee: Otávio Luis Marques da Silva
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate