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1 April 2004 Phylogenetic relationships of three genera in Anacardiaceae: Bonetiella, Pseudosmodingium, and Smodingium
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Abstract
Phylogenetic relationships of three genera in Anacardiaceae: Bonetiella, Pseudosmodingium, and Smodingium. Brittonia 56: 169–184. 2004.—Phylogenetic analyses were conducted to determine the relationships between and characterize the morphological variation among three genera of Anacardiaceae: Bonetiella, Pseudosmodingium, and Smodingium. The first two genera are endemic to Mexico and the third to South Africa. Bonetiella and Smodingium are monotypic. Pseudosmodingium has eight species, six extant and two fossil, and all were included in the analyses. Fifty-six anatomical characters for leaves, wood, and fruit, as well as morphological characters, were considered. Our results indicate that Smodingium is not closely related to Pseudosmodingium and Bonetiella, and that these last two genera are sister taxa. Pseudosmodingium is a monophyletic group and the two fossil species are related to species from the same geographical area of central Mexico where they were found. Fruit anatomical characters were significant at the generic level, while leaf anatomical characters were important at the species level in Pseudosmodingium.Phylogenetic relationships of three genera in Anacardiaceae: Bonetiella, Pseudosmodingium, and Smodingium. Brittonia 56: 169–184. 2004.—En este trabajo se llevaron a cabo análisis filogenéticos para determinar las relaciones filogenéticas así como caracterizar la variación morfológica de tres géneros de Anacardiaceae: Bonetiella, Pseudosmodingium y Smodingium. Los dos primeros son endémicos a México y el tercero a Sudáfrica. Bonetiella y Smodingium son monotípicos. Pseudosmodingium incluye ocho especies, dos fósiles y el resto vivientes, y todas fueron consideradas en los análisis. Se consideraron 56 caracteres tanto anatómicos como morfológicos de hojas, madera y frutos. Nuestros resultados indican que Smodingium no está cercanamente relacionado a Pseudosmodingium y Bonetiella, y que estos dos últimos géneros son taxa hermanos. Pseudosmodingium es un grupo monofilético y las dos especies fósiles están relacionadas a especies que crecen en las mismas áreas geográficas del centro de México, donde fueron descubiertas. Los caracteres anatómicos del fruto fueron significativos a nivel genérico, mientras que los de hoja fueron importantes a nivel de especies en Pseudosmodingium.
Carlos Aguilar-Ortigoza, Victoria Sosa and Guillermo Angeles "Phylogenetic relationships of three genera in Anacardiaceae: Bonetiella, Pseudosmodingium, and Smodingium," Brittonia 56(2), (1 April 2004). https://doi.org/10.1663/0007-196X(2004)056[0169:PROTGI]2.0.CO;2
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