O'LEARY Nataly Cristina
Insights into the taxonomy of Citharexylum L. (Verbenaceae): A revision of the South American taxa.
O'LEARY, NATALY; FROST, LAURA; MIRRA, FABIANA; MORONI, PABLO
ANNALS OF THE MISSOURI BOTANICAL GARDEN
MISSOURI BOTANICAL GARDEN
Lugar: Saint Louis, Estados Unidos de América; Año: 2021
Citharexylum L. belongs to the recently circumscribed tribe Citharexyleae Briq. of the Verbenaceae, along with Rehdera Moldenke. It comprises around 50?60 species of trees and shrubs growing in the Neotropics. A complete taxonomic revision of Citharexylum in South America is here provided for the first time. Thirty taxa are present in South America, 27 of these are endemic, and three of them also grow in Central America. Detailed morphological descriptions are given for each taxon, as well as a key for their identification, illustrations, photographs or iconography, updated synonymy, geographic distribution maps and ecological notes, list of selected specimens, and discussion about the relationship among closely related taxa. A new status, Citharexylum poeppigii var. anomalum (Moldenke) N. O?Leary, and a new combination, C. dentatum var. canescens (Moldenke) N. O?Leary, are proposed. Thirty-five new synonyms are suggested, and lectotypes are designated for: Citharexylum fruticosum fo. brittonii (Moldenke) I.E. Méndez, Citharexylum laurifolium Hayek and Rauvolfia spinosa Cav.