Fig. 2.
Most-parsimonious reconstruction of the evolution of life-form and photosynthetic pathway in Bromeliaceae, based on relationships supported by bootstrap analysis of the combined matK plus rps16 intron data set. Carbon-isotope ratios (δ13C values in ‰) are shown for the taxa analyzed. The derived character-states “epiphytic” and “CAM” are highlighted in blue and red, respectively. Two species of Brocchinia can grow epiphytically (not shown), probably representing a further independent origin of epiphytism in Bromeliaceae.