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A new species of Spigelia L. (Loganiaceae) from Mexico

C. SOFIA ISLAS-HERNÁNDEZ, LUCIO LOZADA-PÉREZ, LEONARDO O. ALVARADO-CÁRDENAS

Abstract


A new Mexican species of Spigelia (Loganiaceae), distributed in the states of Guerrero and Michoacán, is here described. The new species can be distinguished from the similar-looking S. humboldtiana by its corolla with innerly purple lobes, inserted stamens above the proximal half of the corolla tube and exserted style. With this contribution, Mexico reaches a total of 20 species, of which 50% are endemic, highlighting this country as a center of diversity for this genus. A dichotomous key for the species recorded in the states of Guerrero and Michoacán is included.


Keywords


Endemism, Guerrero, Michoacán, Spigelia, Eudicots

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DOI: http://dx.doi.org/10.11646/phytotaxa.303.2.2

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ISSN 1179-3155 (print); ISSN 1179-3163 (online)

Published by Magnolia Press, Auckland, New Zealand