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2026-09-30
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Kåre Bremer: Synantherologist, Pioneer of Cladistics and Co-Architect of APG
J. Mauricio Bonifacino
https://orcid.org/0000-0003-0377-3853
DOI: https://doi.org/10.53875/capitulum.04.2.01
Keywords: Asteraceae, Asterales, APG classification, Compositae, phylogenetic systematics, Swedish botany
Abstract
Swedish botanist Kåre Bremer (b.1948) reshaped modern botany across three interconnected domains: the
systematics of Compositae, the theory and practice of cladistics, and the phylogenetic classification of flowering
plants. As a synantherologist, he produced foundational revisions of South African Gnaphalieae and Anthemideae,
conducted the first comprehensive cladistic analysis of the entire Compositae family, and edited Asteraceae:
Cladistics and Classification (1994), the first encyclopedic global treatment of the family in nearly a century,
which remains a cornerstone of Compositae research. As a pioneer of cladistics in botany, he co-authored the
landmark 1978 article "Phylogenetic systematics in botany," helped introduce rigorous phylogenetic reasoning into
a discipline long resistant to explicit methodology, and served as President of the Willi Hennig Society from 1985
to 1988. James S. Farris applied Bremer's name to the measure of clade robustness now known as Bremer support,
which became an important measure of robustness in phylogenetic analysis. He contributed to our understanding
of angiosperm phylogeny and attempted to clarify the evolution of asterids and monocots in space and time,
equipped with methods for ancestral area identification and phylogenetic dating, methods he had devised for that
purpose. Separately, he served as one of the coordinators of the Angiosperm Phylogeny Group through three
successive installments, APG I (1998), APG II (2003), and APG III (2009), the classification framework that now
defines global plant systematics. Beyond his research, Bremer mentored fifteen doctoral students and served as
President of Stockholm University from 2004 to 2013.
