What do you mean by APG III classification?

The APG III system of flowering plant classification is the third version of a modern, mostly molecular-based, system of plant taxonomy being developed by the Angiosperm Phylogeny Group (APG). Published in 2009, it was superseded in 2016 by a further revision, the APG IV system.

How many families are there in APG IV classification?

416 families
Compared to the APG III system, the APG IV system recognizes five new orders (Boraginales, Dilleniales, Icacinales, Metteniusales and Vahliales), along with some new families, making a total of 64 angiosperm orders and 416 families.

What is base of APG system of classification?

The original APG system is unusual in being based, not on total evidence, but on the cladistic analysis of the DNA sequences of three genes, two chloroplast genes and one gene coding for ribosomes.

How many versions of APG classification are there?

As of 2016, three revisions have been published, in 2003 (APG II), in 2009 (APG III) and in 2016 (APG IV), each superseding the previous system.

What are the informal group of APG III classification?

In APG classifications families are grouped into putative monophyletic orders under a small number of informal monophyletic higher groups: magnoliids, monocots, commelinoids, eudicots, core eudicots, rosids, eurosids I, eurosids II, asterids, euasterids I and euasterids II.

Who proposed APG system of classification?

Following important works on plant classification by members of the de Candolle family, de Jussieu and others, Kew botanists, George Bentham and Joseph Hooker, developed a system of classification in the 19th century that was in use in Kew’s Herbarium and elsewhere until a few years ago.

How many angiosperm families are there?

The rest of the fruit and seed coat are removed due to the urushiol content. Additionally, while there are over 350,000 species of flowering plants, there are only around 400 families.

Who proposed APG classification?

What are five important angiosperm families?

8.4: Angiosperm Families

  • Orchidaceae, the Orchid Family.
  • Asteraceae, the Aster Family or Composite Family.
  • Fabaceae, the Legume Family.
  • Poaceae, the Grass Family.

What are 5 important angiosperm families?

What are the three major families of angiosperms?

The three largest flowering plant families containing the greatest number of species are the sunflower family (Asteraceae) with about 24,000 species, the orchid family (Orchidaceae) with about 20,000 species, and the legume or pea family (Fabaceae) with 18,000 species.