Abstract
During botanical explorations in the highlands of NW Mexico, two new Salvia L. species were discovered in the state of Chihuahua: S. reginae J. G. Gonzalez & J. H. Vega and S. spellenbergii J. G. Gonzalez. The first one is morphologically similar to S. concolor Lamb. ex Benth., from which it differs by having smaller floral bracts, a longer upper corolla lip, stamens parallel to the dorsal corolla line, longer filament and connective, the latter ornate with an antrorse tiny acute tooth, longer thecae, longer and exserted styles, and bigger mericarps. Salvia spellenbergii resembles S. fruticulosa Benth., S. goldmanii Fernald and S. pruinosa Fernald; however, it can be distinguished from these because of its shorter petioles, smaller leaf blades, usually fewer floral nodes, fewer flowers per floral node, and regularly shorter calyces. Both species are described and illustrated. Tables with morphological comparisons, illustrations, conservation assessment, and a distribution map are also presented.Citation: Gonzalez-Gallegos J. G., Vega-Mares J. H. & Fernandez J. A. 2019: Salvia reginae and S. spellenbergii (Lamiaceae), two new species from Chihuahua, Mexico. – Willdenowia 49: 319 – 328. doi: https://doi.org/10.3372/wi.49.49303Version of record first published online on 26 November 2019 ahead of inclusion in December 2019 issue.
Highlights
Salvia L. is the largest genus within Lamiaceae with an estimated diversity among 900–1000 species worldwide (Frodin 2004; Harley & al. 2004; Drew & al. 2017)
González-Gallegos & al.: Salvia reginae and S. spellenbergii from Mexico based on molecular and morphological evidence, and which is congruent with practical and ethical commitments, i.e. avoiding excessive taxonomic changes that would destabilize the taxonomy of the group creating confusion and hindering communication between the systematic community and general users of the nomenclature (Drew & al. 2017)
The herbarium specimens collected of both new species for this study, and those of Salvia spellenbergii sp. nov. already deposited in CIIDIR and MEXU herbaria, were thoroughly examined and collated against specialized literature for its identification (Epling 1939; Ramamoorthy 2005; Klitgaard 2012; González-Gallegos & al. 2016), as well as compared with type specimens of morphologically similar species at JSTOR Global Plants (JSTOR 2019)
Summary
Salvia L. is the largest genus within Lamiaceae with an estimated diversity among 900–1000 species worldwide (Frodin 2004; Harley & al. 2004; Drew & al. 2017). Ex Benth., from which it differs by having smaller floral bracts, a longer upper corolla lip, stamens parallel to the dorsal corolla line, longer filament and connective, the latter ornate with an antrorse tiny acute tooth, longer thecae, longer and exserted styles, and bigger mericarps. A. 2019: Salvia reginae and S. spellenbergii (Lamiaceae), two new species from Chihuahua, Mexico.
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