1076. Vernonia missurica Raf.: Compositae.

Hind, Nicholas; Langhorne, Joanna

1076. Vernonia missurica Raf.: Compositae.

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Journal article

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Hind, Nicholas

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Langhorne, Joanna

Date published

April 16, 2024

Abstract

Raf. (Compositae: Vernonieae: Vernoniinae) is described and illustrated, a full synonymy provided, the location of known type material provided, and its taxonomic position discussed; a selected iconography is indicated. The cultivation, propagation, pests and diseases and availability of the species are commented on. The complexity of the tribe Vernonieae in a global context is discussed and compared with that of the Eupatorieae. Schreb. sensu stricto is considered by some to be restricted to North America and Mexico, with two disjunct species in South America. The infrageneric classification of s.s. is commented on, although it is clearly appropriate to regard any formal classification as work in progress as historical attempts are a nomenclatural issue still to be resolved, if needed. The etymology of the generic names and is introduced and then discussed at length. Dusén (Vernonieae), described following anatomical work on xylopodia, is considered to be congeneric with (Less.) DC. (Vernonieae). Dusén's name, once highlighted, has subsequently been added to , although incorrect assumptions have been made in the record, and still have to be updated. A revised generic synonymy of and that of (Less.) DC. is provided; the types of all heterotypic synonyms is stated, along with the location of known type material. The later homonym, Humbert (currently in the Astereae: Madagasterinae), thus requiring a replacement name, is given the name , and the appropriate new combinations, and , are made.