The submersion of Pedilanthus into Euphorbia (Euphorbiaceae)

  title={The submersion of Pedilanthus into Euphorbia (Euphorbiaceae)},
  author={Victor W. Steinmann},
  journal={Acta Botanica Mexicana},
  • V. Steinmann
  • Published 1 October 2003
  • Biology
  • Acta Botanica Mexicana
Pedilanthus (Euphorbiaceae) consists of about 15 species, all of which occur in Mexico. The genus belongs to the tribe Euphorbieae subtribe Euphorbiinae in the subfamily Euphorbioideae, and is one of six satellite genera of Euphorbia. As traditionally suspected, molecular studies have demonstrated that Euphorbia is paraphyletic, and the satellite genera are nested within it. In order to create a classification of Euphorbieae subtribe Euphorbiinae that reflects evolutionary relationships and… 
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  • Biology, Environmental Science
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  • 2018
The Euphorbia genus is unitary by the presence of the characteristic inflorescence named cyathium, but presents a remarkable morphological diversity of aerial vegetative organs, and the spines are the most conspicuous and intriguing from a structural point of view.
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Ephorbia species differ in their karyotype formulae indicating the occurrence of structural changes in their chromosomes supported by meiotic chromosome pairing as quadrivalents were formed in diploid species due to heterozygote translocations.
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This revised synopsis of the taxa of Euphorbiaceae recognizes, and provides keys to, 5 subfamilies, 49 tribes, and 317 genera, and proposes two new tribes and four new subtribes.
Flora of Tropical East Africa
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Sulphur 49. 1844). A new name is required because of the existence of Euphorbia marcrocarpa Boiss. & Buhse
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