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1 April 2011 Morphology-inferred Phylogeny and a Revision of the Genus Emmotum (Icacinaceae)
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Abstract

Emmotum Desv. ex Ham. is a Neotropical, primarily Amazonian and Guayanan genus (Icacinaceae) of 13 tree or shrub species, including a new species here described from Amazonas, Brazil, E. amazonicum Duno & Carnevali. A cladistic analysis of the 18 taxa of Icacinaceae including 13 of Emmotum was carried out using 41 morphological characters. The single most parsimonious tree shows Emmotum as a monophyletic group, strongly supported by nine synapomorphies, with Poraqueiba Aubl. as the sister group. In addition, two main groups are identified within Emmotum. These two groups laxly correspond with the 1872 classification of Engler: Emmotum sect. Brevistyla Engl. and Emmotum sect. Longistyla Engl. (= section Emmotum). The genus Pogopetalum Benth., synonymous within Emmotum, is lectotypified by P. orbiculatum Benth. (≡ E. orbiculatum (Benth.) Miers). We present a revision of Emmotum with information about nomenclature, distribution, ecology, local names, and uses.

Rodrigo Duno de Stefano and Germán Carnevali Fernández-Concha "Morphology-inferred Phylogeny and a Revision of the Genus Emmotum (Icacinaceae)," Annals of the Missouri Botanical Garden 98(1), 1-27, (1 April 2011). https://doi.org/10.3417/2007129
Published: 1 April 2011
JOURNAL ARTICLE
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