Confirming the identity of two enigmatic “spiny solanums” (SolanumsubgenusLeptostemonum, Solanaceae) collected by Jean-Baptiste Leschenault in Java
Aubriot, Xavier | Loup, Caroline | Knapp, Sandra
Taxonomic revision of the tropical Asian species of Solanum revealed two names, Solanum poka Dunal and Solanum graciliflorum Dunal, whose identities were uncertain and whose application has always been tentative. Material collected in Java at the beginning of the 19ᵗʰ century by Jean-Baptiste Leschenault de la Tour and used to describe these taxa has not been found, despite extensive searches in European herbaria. We here stabilise use of these names by comparing herbarium specimens and drawings of original material made by the artist Toussaint François Node-Véran. Detailed descriptions with synonymy, preliminary conservation assessments and specimen citations are provided for both species. Lectotypes are designated for all names (including synonyms) and epitypes designated for Solanum poka and Solanum graciliflorum to stabilise usage.
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