Fig. 5

Schematic representation of the floral vasculature in A. intermedia. a–o Diagrams of transverse sections from the pedicel up to the style region in normal flower (a–h) and two-staminate flower (i–o). CDBs, carpel dorsal bundles, indicated in blue circles; PBs: parietal bundles, indicated in red circles; PLB: placental bundles; VP: vascular plexus; Summary of the floral vasculature in the normal flower (p) and the two-staminate flower (q). The CDBs and PBs in pedicel were distributed from the locular region where anastomose vascular plexus, to floral organs