FIGURE 3. A in Asarum ampulliflorum (Aristolochiaceae), a new species from Taiwan

FIGURE 3. A histogram showing differences in the ratio of the perianth tube length to the diameter at the widest points of perianth tube and the ratio of the perianth tube length to limb-lobe length among Asarum ampulliflorum (am), A. asaroides (as), A. macranthum (ma), and A. satsumense (sa). The lines in the plot indicated the range of each character from each species.