Problematic specimens turn out to be two undescribed species of Bignonia (Bignoniaceae)

By

Zuntini, Alexandre
Taylor, Charlotte M. (Charlotte Morley)
Lohmann, Lucia Garcez

Type

Article

Date of Publication

2015

Original Publication

PhytoKeys

Volume

56

Pages

7-18

Subjects

Amazonia , Bignoniaceae , Costa Rica , Lianas , neotropical flora

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.56.5423

 

Abstract

Bignonia comprises 29 species of lianas characterized by eight phloem wedges, leaves usually 2-foliolate, mostly simple tendrils and opaque seed wings. The analysis of herbarium specimens in preparation for a taxonomic revision of the genus led to the recognition of two new species: (i) Bignonia cararensis from Costa Rica, characterized by a thyrse with lateral compound dichasia and lack of interpetiolar ridge, and (ii) Bignonia sanctae-crucis from Bolivia and Brazil, distinguishable by its membranous leaflets, membranous calyx and small fruits. We provide detailed descriptions, illustrations, distribution maps, initial conservation status assessments, and comparisons of the newly described taxa with closely related species.