Ixora coccinea / Soka (Dicots)
Ixora is a dicot because first of all, they have four petals in their flower. Not only that but they also have broad leafs and have a herbaceous stem. This plant have a tap root stam and its Vascular bundle position is arranged in circles.
Orchid flower (Monocots)
orchid flower is a monocot because their leafs are parallel, and their flowers have only three petals each. The other reason that an Orchid is a Monocot is because they have a single cotyledon in their seed. As you can see from the picture above, orchid plants have also fibrous root. They also have a herbaceous rude with a scattered vascular bundle position, as the plant grows it will create new vascular bundle for a new tissue.