Two new species of Lycianthes series Tricolores (Solanaceae) from southern Mexico and Guatemala
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Lycianthes grandifolia and L. mariovelizii are newly described from southern Mexico and Guatemala. Both species are shrubs with relatively long calyx appendages belonging to series Tricolores; L. mariovelizii has appendages up to 11 mm long in flower and 14 mm long in fruit that are somewhat flattened at the base, while L. grandifolia has appendages up to 7.5 mm long in flower that are not flattened at the base. Lycianthes grandifolia is also distinguished by having leaves up to 22 cm long and ribbed to angled young stems that are somewhat collapsed in pressed specimens. This article provides descriptions and illustrations of the species and a new key to the species of series Tricolores.
KeywordsGuatemala Lycianthes Mexico Solanaceae taxonomy
We thank the staffs of BIGU, CAS, DAV, F, MEXU, MO, NY, US, and XAL for assisting us with herbarium specimen use; Jean Shepard (DAV) for assisting us with housing our loan specimens; the United States National Science Foundation for an award (no. 1457351) to Ellen Dean to support fieldwork in 2017 and development of a specimen database; Shirley Tucker for support of additional herbarium personnel which allowed the first author to travel abroad; the Missouri Botanical Garden herbarium for use of the images in Figs. 1 and 3b; the Herbario Nacional de México (Universidad Nacional Autónoma de México) for use of the image in Fig. 3a; the UC Davis Center for Plant Diversity for the use of the image in Fig. 4; Kanchi Gandhi for assistance with specific epithets; and Lynn Bohs, Michael Nee, and the editors of Brittonia for providing helpful comments that much improved the manuscript.
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