Brassiceae

Tantawy, Mohamed E., Husein, Mariam I., Mourad, Magdy M. & Abdel-Hameed, Usama K., 2021, Comparative floral anatomy of some species of Brassicaceae and its taxonomic significance, Adansonia (3) 43 (20), pp. 223-234 : 233

Tribe Brassiceae

The line of advancement was from Raphanus sativus (less advanced) to Eruca sativa (advanced) through the intermediate level (12 studied species). Eruca sativa exhibits number of advanced characters viz. dissected siphonostele, unsplitting sepal median bundles throughout, the petals vascular supply derived from complexes, the two outer staminal bundles arose from complex shared with nectaries and non-vascularized septum. The primitiveness of Raphanus sativus was owing to the sepal median bundles arose from the central stele with further ramification (dependent origin), dependent sepal marginal bundles, petal bundles come from complexes sharing with one organ, fused vascularized septum, the lateral carpellary bundles from the central stele, many ovules and vascularized nectaries( Figs 6 ; 7).

Figures

FIG. 6. — The evolutionary grades of the studied species ofBrassicaceae