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Oct 16, 2013 · Asteridae were generally considered to be the ‘most derived’ or ‘most advanced’ subclass of angiosperms (e.g. Cronquist, 1981) and were thought to be of relative recent origin compared to other major groups of eudicots or early diverging angiosperms (e.g. Stebbins, 1974). As shortly outlined in the following, these early ideas about the ...
Jul 11, 2020 · The asterids (Asteridae), with ∼100,000 species, include nearly one quarter of the extant angiosperm species and are thus the largest subgroup in eudicots. The bulk of the species belongs to the former subclass Asteridae and includes many economically important crops ( Magallón and Castillo 2009 ).
- Caifei Zhang, Taikui Zhang, Federico Luebert, Federico Luebert, Yezi Xiang, Chien Hsun Huang, Yi Hu,...
- 2020
Asterids. In the APG IV system (2016) for the classification of flowering plants, the name asterids denotes a clade (a monophyletic group). Asterids is the largest group of flowering plants, with more than 80,000 species, about a third of the total flowering plant species.
Mar 6, 2010 · The order of asterids with the best fossil record is the Ericales (Table 2), with 80 reports; however, this apparent abundance of ericalean taxa is misleading since a good portion of these records is based on reports of the genus Symplocos, monographed in 1949 by Kirchheimer. If the taxa described in that work were removed, only 48 records ...
- Marcela Martínez-Millán
- mm383@cornell.edu
- 2010
Asterids. : Systematics. The asterids are one of the largest subgroups of the flowering plants, with more than 75,000 species. Within the asterids, these species are divided about equally between two large clades (evolutionary lineages), shown in the diagram above.
The Asteridae is the final large group that we will examine in the Eudicots. This monophyletic group is well supported by molecular data and has many distinct morphological characters as well. Today we will look at two of the basal orders, Cornales (Cornaceae) and Ericales (Ericaceae, Theaceae, Primulaceae, Polemoniaceae), of the Asteridae.
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In asterid eudicots, including Lamiales, there are several well-supported examples of reversal to actinomorphy from zygomorphy [14,52]. Perhaps the best-documented case is that of Plantago, which has actinomorphic four-merous flowers, but is phylogenetically nested within a clade mostly possessing zygomorphic five-merous flowers.
