Abstract
ABSTRACT Two new species of Mandevilla endemic to inselbergs of the state of Espirito Santo, Brazil, are described. Mandevilla alata resembles M. callista but differs by having winged stems, shorter petioles, shorter pedicels, and a white corolla with a red throat. Mandevilla ibitubana resembles M. grazielae but differs by having short-petiolate leaves, a white corolla, and shorter anthers. Illustrations, a distribution map, conservation assessments and a key to species of Mandevilla growing on inselbergs in Espirito Santo are included.
Highlights
Inselbergs are Precambrian granitic and gneissic rock outcrops present on all continents, but more diverse in south eastern Brazil, Madagascar, and south western Australia (Burke 2003; Porembski 2007; Rabarimanarivo et al 2019)
Two new species of Mandevilla endemic to inselbergs of the state of Espírito Santo, Brazil, are described
In Brazil, most inselbergs are found in Espírito Santo, northern Rio de Janeiro, north eastern Minas Gerais, and southern Bahia (Ab’Saber 1967; Paula et al 2016; Campos-Rocha et al 2018)
Summary
Inselbergs are Precambrian granitic and gneissic rock outcrops present on all continents, but more diverse in south eastern Brazil, Madagascar, and south western Australia (Burke 2003; Porembski 2007; Rabarimanarivo et al 2019). Two new species of Mandevilla endemic to inselbergs of the state of Espírito Santo, Brazil, are described. Mandevilla alata resembles M. callista but differs by having winged stems, shorter petioles, shorter pedicels, and a white corolla with a red throat. Mandevilla ibitubana resembles M. grazielae but differs by having short-petiolate leaves, a white corolla, and shorter anthers.
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