Context: The internal classification of this group has undergone considerable revision. The Cronquist system, proposed by Arthur Cronquist in 1968 and published in its full form in 1981, is still widely used but is no longer believed to accurately reflect phylogeny. A consensus about how the flowering plants should be arranged has recently begun to emerge through the work of the Angiosperm Phylogeny Group (APG), which published an influential reclassification of the angiosperms in 1998. Updates incorporating more recent research were published as APG II in 2003 and as APG III in 2009.

Question: What internal component has undergone considerable revision?
Answer: classification

Question: What system did Arthur Cronquist put forth in 1968, but not publish in full form until 1981?
Answer: The Cronquist system

Question: What consensus is the AGP trying to reach?
Answer: how the flowering plants should be arranged

Question: Who published an influential reclassification of the angiosperms in 1998?
Answer: APG

Question: What classification system was published by APG II in 1968?
Answer: Unanswerable

Question: When was the APG II system published fully?
Answer: Unanswerable

Question: What is no longer believed about the APG system?
Answer: Unanswerable

Question: What consensus has emerged through the work of Arthur Cronquist?
Answer: Unanswerable

Question: What did Arthur Cronquist publish about angiosperms in 1998?
Answer: Unanswerable