Stem anatomy supports Arabidopsis thaliana as a model for insular woodiness.

Address: Netherlands Centre for Biodiversity Naturalis (Section NHN), Leiden University, PO Box 9514, NL-2300 RA Leiden, The Netherlands.; (Authors for correspondence: Frederic Lens tel +31 71 527 3570; email [email protected]; Siegbert Melzer tel +49 431 880 3345; email [email protected]).; Laboratory of Plant Systematics, Institute of Botany and Microbiology, Kasteelpark Arenberg 31 Box 2437, K.U. Leuven, BE-3001 Leuven, Belgium.; Present address: Plant Breeding Institute, Christian-Albrechts-University Kiel, Am Botanischen Garten 1-9, D-24118 Kiel, Germany.