Clarifying the nomenclature of Strychnosbredemeyeri and Lasiostoma (Loganiaceae)

Robberson Bernal Setubal; Lena Struwe; Jefferson Prado; Rafaela Campostrini Forzza

doi:10.3897/phytokeys.243.123921

Clarifying the nomenclature of Strychnosbredemeyeri and Lasiostoma (Loganiaceae)

PhytoKeys. 2024 Jun 24:243:137-148. doi: 10.3897/phytokeys.243.123921. eCollection 2024.

Authors

Robberson Bernal Setubal^{1

2}, Lena Struwe³, Jefferson Prado⁴, Rafaela Campostrini Forzza^{1

2

5}

Affiliations

¹ Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, Rua do Matão, 277, 05508-090, São Paulo, SP, Brazil.
² Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão, 915, 22460-030, Rio de Janeiro, RJ, Brazil.
³ Department of Ecology, Evolution, and Natural Resources, Rutgers University, 14 College Farm Road, New Brunswick, NJ 08901, USA.
⁴ Department of Plant Biology, Rutgers University, 59 Dudley Road, New Brunswick, NJ 08901, USA.
⁵ Instituto de Pesquisas Ambientais (IPA), Herbário SP, Av. Miguel Estéfano, 3687, CEP 04301-012, São Paulo, SP, Brazil.

Abstract

Strychnos (Loganiaceae, Gentianales) is a large and pantropical genus of woody plants, ethnobotanically important as a source of many toxic alkaloids, including strychnine. Unfortunately, the status of numerous names at various ranks of Strychnos remains unresolved, including that of many specific or infraspecific taxa in the Neotropics. In this study, we address Strychnosbredemeyeri (basionym Lasiostomabredemeyeri), a species described in 1827 based on type material collected in Venezuela during the poorly documented Austrian Märter expedition (1783-1788). Strychnosbredemeyeri is an unarmed liana with solitary tendrils and axillary inflorescences that occurs in Neotropical rainforests and savannas in Brazil, Guyana, Trinidad and Tobago, and Venezuela. We clarify here the nomenclatural status of Lasiostoma Schreb., an illegitimate and superfluous genus currently in synonymy under Strychnos, and its former species Lasiostomabredemeyeri [= Strychnosbredemeyeri]. Also, we lectotypify S.pedunculata and S.trinitensis, both taxa currently synonyms of S.bredemeyeri.

Keywords: Classification; Gentianales; Neotropics; Strychneae; nomenclature; systematics.

Robberson Bernal Setubal, Lena Struwe, Jefferson Prado, Rafaela Campostrini Forzza.

Grants and funding

RBS’s research at NYBG was funded by a grant from the NFS – National Science Foundation (DEB1456232, P.I. BMT), and work in Brazil was funded by CAPES – Coordenação de Aperfeiçoamento de Pessoal de Nível Superior grant (Code 001), and IAPT – International Association for Plant Taxonomy Research Grants Program in Plant Systematics. RCF thanks the research grants awarded by FAPERJ – Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro (E‐26/200.967/2022) and the CNPq – Conselho Nacional de Desenvolvimento Científico e Tecnológico (303059/2020-6).