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In APG II, the family Thismiaceae has been included in family Burmanniaceae and the families Taccaceae and Trichopodaceae have been included in family Dioscoreaceae.
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APG and II
The Angiosperm Phylogeny Group system ( APG ) of 1998 and APG II ( 2003 ) assigned the Alismatales to the monocots, which may be thought of as an unranked clade containing the families listed below.
Under the Cronquist system of taxonomic classification of flowering plants Asteraceae was the only family in the group, but newer systems ( such as APG II and APG III ) have expanded it to eleven.
The order is not recognized in the APG II system, of 2003, which places the plants involved in the order Poales.
The Brassicales are an order of flowering plants, belonging to the eurosids II group of dicotyledons under the APG II system.
* ( 2003 ): An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II.
The APG II system, therefore, has merged the two families under the name ' Brassicaceae '.
This is unchanged from the APG II of 2003, but different from the older APG system of 1998, which did not include Hanguanaceae.
The APG II system, used here, assigns the plants involved to the order Poales.
In APG II system, of 2003, this order was placed in the clade monocots and comprised the families Burmanniaceae, Dioscoreaceae and Nartheciaceae.
Under the more recent Angiosperm Phylogeny Group ( APG II ) system, the circumscription of the order is much the same but the families are circumscribed differently.
Under the APG II definition some well-known members of Dipsacales are honeysuckle, elder, viburnum, and valerian.
The APG II system assigns these plants to the order Poales.
In the APG II circumscription this order includes the families Fabaceae or legumes ( including the subfamilies Caesalpinioideae, Mimosoideae, and Faboideae ), Quillajaceae, Polygalaceae or milkworts ( including the families Diclidantheraceae, Moutabeaceae, and Xanthophyllaceae ), and Surianaceae.
The other families treated in the Fabales by the APG II classification were placed in separate orders by Cronquist, the Polygalaceae within its own order, the Polygalales, and the Quillajaceae and Surianaceae within the Rosales.
The APG II system ( 2003 ) places this order in the clade monocots and uses this circumscription:
It used a much wider circumscription ( many of the plants here are assigned to Asparagales and Dioscoreales by APG II ):
Other well-known members of Malvales in the APG II sense are daphnes, hibiscus, hollyhocks, okra, baobab trees, cotton, and kapok.
Since the APG II system was published in 2003, minor changes to the circumscription of the order have been made.
The APG system ( 1998 ) and the APG II system ( 2003 ) place this order in the clade magnoliids, circumscribed as follows:
APG and family
Based on phylogenetic research, the latest ( 2009 ) revision of the APG classification supports the use of a single broadly defined family, Asparagaceae sensu lato.
The APG III system ( 2009 ) differs only in that the Limnocharitaceae are combined with the Alismataceae ; it was also suggested that the genus Maundia ( of the Juncaginaceae ) could be separated into a monogeneric family, Maundiaceae, but the authors noted that more study was necessary before Maundiaceae could be recognized.
Successive revisions of the influential Angiosperm Phylogeny Group ( APG ) classification have changed the circumscription of the family.
The family is solidly placed within the Apiales order in the APG III classification system.
The APG III system ( 2009 ) places the genus in the family Xanthorrhoeaceae, subfamily Asphodeloideae .< ref >
The family is included in Brassicales according to the APG system.
In APG III, the family Luzuriagaceae is combined with the family Alstroemeriaceae and the family Petermanniaceae is recognized.
The APG system ( 1998 ) also placed the order in the clade monocots, but with a slightly different circumscription ( missing the family Corsiaceae ):
The dominant family in the APG II-system is the extended Malvaceae ( Malvaceae sensu lato ) with over 4000 species, followed by Thymelaeaceae with 750 species.
The difference from the APG II system is not as large as may appear, as the plants in the families Aceraceae and Hippocastanaceae stay in this order at APG II ( both included in family Sapindaceae ).
The species now composing the family Nitrariaceae in APG II also belonged to this order in the Cronquist system as part of the family Zygophyllaceae, while those now in the family Kirkiaceae were present as part of the family Simaroubaceae.
The APG II system placed the family in Malpighiales, based on a DNA sequence for the rbcL gene from Whittonia.
The AP-Website indicates that Olacaceae ( sensu APG II ) is not a good family and should be split.
Studies based on DNA sequences also indicate that the family Schoepfiaceae should be resurrected ( as has been done in the updated APG III-publication ) to accommodate Schoepfia ( formerly in Olacaceae ), Arjona and Quinchamalium ( both previously in Santalaceae ).
APG and Thismiaceae
Under the APG system of 1998, the order was placed in the clade monocots and comprised the families Burmanniaceae, Dioscoreaceae, Taccaceae, Thismiaceae and Trichopodaceae
The circumscription of the family in APG II is wider than in the APG system, of 1998, and includes the plants that belonged to the family Thismiaceae in APG.
APG and has
The APG III system has recently adopted this last solution, but this may change as a consensus arises on this point.
The cladogram has been made according to the APG system:
Monocot classification has undergone considerable revision in recent years, and some newer systems, including the Angiosperm Phylogeny Group's APG III classification system, have assigned many of these genera to different families based on genetic relationships.
In the APG system, genus Carya ( and the whole Juglandaceae family ) has been recently moved to the Fagales order.
Molecular phylogenetic analysis of DNA sequences has shown that Agapanthus is sister to a clade consisting of subfamilies Allioideae and Amaryllidoideae of the family Amaryllidaceae ( sensu APG III ).
The most recent APG classification, APG III, takes a broad view of the Amaryllidaceae, which then has three subfamilies, one of which is Amaryllidoideae ( the old Amaryllidaceae family ), and the others are Allioideae ( the old Alliaceae family ) and Agapanthoideae ( the old Agapanthaceae family ).
The APG II system, of 2003, has accepted this genus as constituting its own family Xeronemataceae.
The Geographical Association, in conjunction with the Royal Geographical Society ( RGS-IBG ) has been awarded Government funding to support a range of projects as part of the Action Plan for Geography ( APG ) covering the period 2006-11.
In the APG III system of classification ( the standard agreed by WikiProject Plants ), Agavaceae has been replaced by Agavoideae.
According to APG II system, the current placement of these genera is perhaps mostly in the ' new ' Malvaceae sensu lato, but with Muntingia moved to family Muntingiaceae, while tribes VI and VII form the core of family Elaeocarpaceae and tribe V has been moved to the ' new ' family Salicaceae sensu lato.
The name has not been used in most of the more influential recent classification systems, such as the Cronquist system, the Thorne system, the Takhtajan system or the APG II system.
Traditionally it has been treated in the family Chenopodiaceae, but the APG II system, of 2003, places it in the family Sarcobataceae.
More recently, the APG II system has greatly expanded the scope of the family by including many genera previously classified in the Flacourtiaceae.
A phylogenetic infrafamilial classification of Celastraceae sensu APG III has not yet been published.
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