Eudicots with tetramerous or pentamerous petals may have rotational symmetry of order 4 or 5.
2.
In the majority of the species, flowers are tetramerous ( composed of four identical parts ) or sometimes dimerous.
3.
Monocots with broad leaves and reticulate leaf veins, typical of dicots, are found in a wide variety of monocot families : for example, " Trillium ", " Smilax " ( greenbriar ), and " Pogonia " ( an orchid ), and the Dioscoreales ( yams ) . " Potamogeton " are one of several monocots with tetramerous flowers.
परिभाषा
having or consisting of four similar parts; tetramerous flowers
मोबाइल