Journal
PHYTOTAXA
Volume 544, Issue 1, Pages 81-88Publisher
MAGNOLIA PRESS
DOI: 10.11646/phytotaxa.544.1.7
Keywords
Conservation; endemism; Ruellieae; taxonomy
Categories
Funding
- Fundacao de Amparo a Pesquisa do Estado de Goias (FAPEG)
- Companhia Brasileira de Aluminio (CBA)
- Empresa Reservas Votorantim Ltda [201810267001534]
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) [307747/2019-0]
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The new species Ruellia umbrosa, found in the riparian forest in the lowlands of Goiás state, Brazil, is described and illustrated in this article. It shares similarities with South American species R. erythropus and R. epallocaulos in terms of stems, flowers, and capsules, but differs in corolla color, presence of bractlets, calyx lobes, and seed characteristics. Due to its small population and environment being heavily impacted by human activities, it is classified as Critically Endangered.
Ruellia umbrosa, a new species from the riparian forest in the lowlands of the Goi??s state, is described and illustrated. It is similar to the South American species R. erythropus and R. epallocaulos by the decumbent stems rooting at nodes, solitary flowers in the axils of the upper leaves, and capsules with eight or more seeds, but differs in having white or slightly mauve corollas, absence of bractlets, corolla with tube and throat similar in size, calyx with 5 lobes equal or slightly subequal with dense trichomes, and larger number and size of the seeds by capsules, among other characters. It grows in an environment under strong anthropogenic pressure in a small area and, therefore, was classified as Critically Endangered.
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