Two new species of Stylosanthes Sw. (Leguminosae-Papilionoideae) endemic to Bahia State, Brazil

Author(s)

Da Silva Ferreira, Jamile Jorge ^[1] ; Gissi, Danilo Soares ^[2] ; Fortuna Perez, Ana Paula ^[2] ; Silva, Juliana Santos ^[1]

Affiliation

^[1] Univ Estado Bahia UNEB, Dept Educ, Programa Posgrad Biodiversidade Vegetal, Campus 8, 503 Bairro Alves de Souza, BR-48608240 Paulo Afonso, BA - Brazil

^[2] Univ Estadual Paulista UNESP, Dept Bot IBB, Rua Prof Antonio Celso Wagner Zanin S-N, BR-18618689 Botucatu, SP - Brazil

• Document type: Journal article
• Source: PHYTOTAXA; v. 456, n. 2, p. 157-165, AUG 20 2020.
• Web of Science Citations: 0

Abstract

Two new species of Stylosanthes Sw. (Leguminosae), S. minima and S. mitzii, endemic to central-southern Bahia State, in northeastern Brazil, are described and illustrated. The species differ from each other principally by the length of the fruit rostrum, the presence or absence of indumentum, the shapes or sizes of their bracts and bract leaflets, and numbers of spikes per inflorescence. Stylosanthes minima differs from S. macrocephala by having the upper segments of the fruit pilose to extremely pubescent (vs. glabrescent), rostrum with 0.5-1 mm long (vs. 1.5-2.5 mm long), and by the number of spikes (2-7 vs. 1-3). Stylosanthes mitzii differs from S. capitata by having bracts oval (vs. elliptic), bract leaflets lanceolate (vs. elliptic), and rostrum shorter (0.5-1.5 mm long vs. 2-2.5 mm long). An identification key is provided for all the known species with an axis rudiment from Bahia State, as well as data concerning the micromorphology of the fruits, images, and maps. (AU)

• FAPESP's process: 15/13386-0 - TAXONOMIC, PHYLOGENETIC AND BIOGEOGRAPHIC STUDIES IN ERIOSEMA (DC.) DESV. (LEGUMINOSAE, PAPILIONOIDEAE, PHASEOLEAE)
• Grantee: Ana Paula Fortuna Perez
• Support Opportunities: Regular Research Grants