A 20th-century system of plant taxonomy, the Reveal system (see also the Thorne & Reveal system[1][2]) of plant classification was drawn up by the American botanist James Reveal (1941-2015).
The system was published online in 1997 in ten parts[3] as lecture notes comparing the major systems in use at that time.
[4] Subsequently, Reveal became an author with the consensus Angiosperm Phylogeny Group (APG) on the APG II 2003[5] and APG III 2009[6][7] processes.
Although this largely supplanted the earlier and competing systems, he collaborated with Robert Thorne on his system (2007),[2] and subsequently continued to develop his own system.
[1][8] In more detail: