Synopsis and Cladistics of the genus <i>Misodendrum</i> (Misodendraceae, Santalales)
Misodendrum Banks ex DC., exclusively parasitic on Nothofagus (Nothofagacece) and the single representative of the family Misodendracece (Santalales), is a monophyletic group defined by its achlamydeous perianth. It comprises eight species endemic to the Subantarctic province in southern South Ameri...
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| Autores principales: | , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
1997
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/111156 |
| Aporte de: |
| Sumario: | Misodendrum Banks ex DC., exclusively parasitic on Nothofagus (Nothofagacece) and the single representative of the family Misodendracece (Santalales), is a monophyletic group defined by its achlamydeous perianth. It comprises eight species endemic to the Subantarctic province in southern South America. A synopsis of Misodendracece is provided, including a diagnoses, a key to the species, and distributional and host plant information. The cladistic analysis of Misodendrum was carried out using 18 characters of its external morphology and anatomy. The eight species of Misodendrum and the closely related families Eremolepidacece and Viscacece -were used as terminal taxa. Plesiomorphic character states were identified with Loranthacece as outgroup. The analysis yielded one cladogram with the following phylogenetic sequence: (Loranthacece, (Viscacece, (Eremolepidacece, ((Misodendrum linearifolium, (M. quadriflorum, (M. brachystachyum, M. oblongifolium))), ((M. gayanum, M. punctulatum), (M. angulatum, M. macrolepis)))))). The monophyletic groups delimited within Misodendrum correspond closely to the subgenera and sections previously proposed by other authors. |
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