Abstract
SummaryThe controversy regarding the status of the Macroptilium gracile species complex has been elucidated by the authors of this paper; nevertheless, some nomenclatural issues regarding the naming of the newly established variety have been found. In the present contribution, we discuss some nomenclatural aspects concerning the valid publication of the name Macroptilium gracile var. subcoriaceum (Benth.) Berlingeri, M.B.Crespo & Calles. After considering different nomenclatural evidence, the latter varietal name is to be considered superfluous and therefore, we establish a new combination (i.e., Macroptilium gracile var. longepedunculatum).
Highlights
Macroptilium gracile (Poepp. ex Benth.) Urb. is distributed in Central and South America, and is an extremely variable species
Ever since Bentham (1837) described its basionym Phaseolus gracilis Poepp. ex Benth., the species has been the subject of controversy
On the basis of morphological, molecular and biogeographic data, Berlingeri et al (2020) concluded that there is enough evidence to separate the Macroptilium gracile species complex into two distinct species: M. gracile and M. campestre (Mart. ex Benth.)
Summary
Macroptilium gracile (Poepp. ex Benth.) Urb. is distributed in Central and South America, and is an extremely variable species. Berlingeri, M.B.Crespo & Calles (= Phaseolus scolecocarpus Piper). Berlingeri et al (2020) described one infraspecific taxon based on the earliest legitimate name at the same rank Subcoriaceus Benth.) as sanctioned by the International Code of Nomenclature for algae, fungi, and plants (hereinafter referred to as the Code) (Art. 11.4, Turland et al 2018).
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