Flower and its anatomy of Magnolia championii. cb: cortical bundle, l:ovarian locule, lb: lateral bundle, ob: ovular bundle, ov: ovule, vb: ventral bundle. a. Blooming flower. b. Longitudinal sections of a flower, showing relationship between ovarian locule, ovule, ovular bundle, and ventral bundle. c. Detailed view of Figure 6b, showing ovular and ventral bundles. d. The central xylem (white arrow) in ovular bundle and abaxial xylem (black arrow) in ventral bundle. e. Cross section of an amphicribral ovular bundle with central xylem (white arrow) in the placenta. f-g. Longitudinal sections of carpels in their early development showing carpel wall (CW) and placenta (arrows).