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1 April 2004 Phylogenetic relationships and morphological patterns in Graptopetalum (Crassulaceae)
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Abstract

Phylogenetic relationships and morphological patterns in Graptopetalum (Crassulaceae). Brittonia 56: 185–194. 2004.—Graptopetalum is a genus of approximately 17 species of mainly dry habitats from Arizona to Oaxaca. Circumscription of the genus has been problematic. A cladistic analysis was performed based on 39 morphological characters to determine if Graptopetalum constitutes a monophyletic group and to determine the relationships among the species. Results indicate that Graptopetalum is not monophyletic. A large clade that includes most of the species of Graptopetalum is weakly supported. In this clade, two subclades received moderate support, one formed by the acaulescent species and another by the haplostemonous taxa.

Phylogenetic relationships and morphological patterns in Graptopetalum (Crassulaceae). Brittonia 56: 185–194. 2004.—Graptopetalum es un género de aproximadamente 17 especies principalmente de zonas áridas desde Arizona hasta Oaxaca. La circunscripción del género ha sido problemática. En este artículo se llevó a cabo un análisis cladístico con base en 39 caracteres morfológicos para determinar si Graptopetalum constituye un grupo monofilético y para determinar las relaciones entre sus especies. Los an;aaalisis recobraron un clado débilmente soportado que incluye a la mayoría de las especies de Graptopetalum. Dentro de este clado dos subclados recibieron un soporte moderado, uno formado por las especies acaulescentes y otro por las especies haplostémonas.

Raúl Acevedo-Rosas, Victoria Sosa, and Francisco G. Lorea "Phylogenetic relationships and morphological patterns in Graptopetalum (Crassulaceae)," Brittonia 56(2), 185-194, (1 April 2004). https://doi.org/10.1663/0007-196X(2004)056[0185:PRAMPI]2.0.CO;2
Published: 1 April 2004
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