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On the evolutionary history of Ephedra: Cretaceous fossils and extant molecules
Gnetales comprise three unusual genera of seed plants, Ephedra, Gnetum, and Welwitschia. Their extraordinary morphological diversity suggests that they are survivors of an ancient, more diverse group. Gnetalean antiquity is also supported by fossil data. Dispersed “ephedroid” (polyplicate) pollen fi...
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| Autores principales: | , , |
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| Formato: | Artigo |
| Lenguaje: | Inglês |
| Publicado: |
National Academy of Sciences
2004
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| Materias: | |
| Acceso en línea: | https://ncbi.nlm.nih.gov/pmc/articles/PMC534533/ https://ncbi.nlm.nih.gov/pubmed/15545612 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1073/pnas.0407588101 |
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