FIG. 4. — Serial cross sections from below upwards through a in Comparative floral anatomy of some species of Brassicaceae and its taxonomic significance

FIG. 4. — Serial cross sections from below upwards through a floral bud of Brassica oleracea L. showing: A, pedicel vasculature; continuous siphonostele; B-F, calyx vasculature; four sepal median bundles arise from sepal-median-nectarial complexes; D-F, corolla vasculature; from petal-sepal marginal-nectarial complexes; D-G, androecium vasculature; six staminal bundles to six fertile stamens emerge directly from the central stele; H-N, gynoecium vasculature; four vascular masses, two dorsal carpellary bundles and two ventral carpellary masses. Scale bar: 500 μm.