Molecular, morphological, and anatomical data support a new species of Croton sect. Geiseleria (Crotonoideae, Euphorbiaceae)

Croton macrosepalus Sodré & M. J. Silva (sp. nov.), a new species found in the states of Bahia, Goiás, and Tocantins, in Brazil, is described and illustrated. Although it is morphologically similar to Croton spica, the novel species can be differentiated from it by having large glandular stipule...

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Veröffentlicht in:Plant systematics and evolution 2019-03, Vol.305 (3), p.233-246
Hauptverfasser: Sodré, Rodolfo C., de Souza, Alessandro O., Alonso, Alexandre A., da Silva, Marcos J.
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container_end_page 246
container_issue 3
container_start_page 233
container_title Plant systematics and evolution
container_volume 305
creator Sodré, Rodolfo C.
de Souza, Alessandro O.
Alonso, Alexandre A.
da Silva, Marcos J.
description Croton macrosepalus Sodré & M. J. Silva (sp. nov.), a new species found in the states of Bahia, Goiás, and Tocantins, in Brazil, is described and illustrated. Although it is morphologically similar to Croton spica, the novel species can be differentiated from it by having large glandular stipules, entire or sometimes serrulate leaf margins, petioles with 2–8 cylindrical nectary glands at the apex, ovate pistillate sepals, and a hat-shaped caruncle. The habitat, conservation status, phenology, and morphological relationships of the species are also discussed. Morphological data and molecular analyses using ITS and trnL–trnF support the placement of C. macrosepalus and C. spica in Croton sect. Geiseleria. A geographic distribution map, images, notes about the leaf anatomy of both species, and their phylogenetic relationships are provided.
doi_str_mv 10.1007/s00606-019-1566-z
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subjects Biomedical and Life Sciences
Conservation status
Geographical distribution
Leaves
Life Sciences
Morphology
New species
ORIGINAL ARTICLE
Phylogeny
Plant Anatomy/Development
Plant Ecology
Plant Sciences
Plant Systematics/Taxonomy/Biogeography
Sepals
title Molecular, morphological, and anatomical data support a new species of Croton sect. Geiseleria (Crotonoideae, Euphorbiaceae)
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