Taxonomic revision of Bignonia L. (Bignonieae, Bignoniaceae)

• Grant number: 13/08657-9
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate (Direct)
• Effective date (Start): September 01, 2013
• Effective date (End): August 31, 2014
• Field of knowledge: Biological Sciences - Botany - Plant Taxonomy
• Principal Investigator: Lúcia Garcez Lohmann
• Grantee: Alexandre Rizzo Zuntini
• Supervisor: Charlotte M. Taylor
• Host Institution: Instituto de Biociências (IB). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Research place: Missouri Botanical Garden, United States
• Associated to the scholarship: 11/09160-5 - Taxonomic revision, phylogeny and biogeography of Bignonia L. (Bignonieae, Bignoniaceae), BP.DD

Abstract

The Bignoniaceae are distributed throughout the tropics and include approximately 840 species, organized in 81 genera. The family was object of many recent phylogenetic studies that imposed taxonomic chances such as recircumscription of previously recognized tribes, genera rearrangement in the "Tabebuia alliance" clade and the reorganization of all genera of the tribe. This tribe is mainly composed of lianas with 4 (or its multiples) phloem wedges. In the last treatment of Bignonieae, the number of accepted genera was reduced from 47 to 21, promoting a significant chance in the delimitation of the genera. Bignonia was a genus that experienced major changes, which now includes 28 species instead of a single species as previously defined (Bignonia capreolata). In this new classification proposition, Bignonia is characterized by tetragonal branches, sometimes ribbed, with interpetiolar ridge and without interpetiolar gland field; 2-foliolated leaves; flattened corolla; and opaque seed wings. The taxonomic history of Bignonia is quite complex, with the number of accepted species ranging form 1 to 173, and also a list of 700 taxa named as Bignonia. In this scenario, a detailed taxonomic revision, aiming for the solution of all taxonomic, nomenclatural and typological problems is extremely important to Bignonieae as a whole. Here we propose to elaborate the monograph of Bignonia, based on morphological characters gathered and the phylogenetic framework created during this thesis. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

ZUNTINI, ALEXANDRE R.; TAYLOR, CHARLOTTE M.; LOHMANN, LUCIA G.. Problematic specimens turn out to be two undescribed species of Bignonia (Bignoniaceae). PHYTOKEYS, v. 56, p. 7-18, 2015. (12/50260-6, 13/08657-9, 11/50859-2, 11/09160-5)

ZUNTINI, ALEXANDRE R.; TAYLOR, CHARLOTTE M.; LOHMANN, LUCIA G.. Deciphering the Neotropical Bignonia binata species complex (Bignoniaceae). PHYTOTAXA, v. 219, n. 1, p. 69-77, JUL 7 2015. (12/50260-6, 13/08657-9, 11/50859-2, 11/09160-5)