| While the perianth can lack the corolla, much of the terminology associated with the perianth deals with shapes of sympetalous corollas. |
| The sympetalous families are believed to be members of a younger group than the dialypetalous ones. |
| The Corolla is generally violet or red, sympetalous, often 2-lipped. |
| These are the plants characterized by sympetalous corollas, epipetalous stamens, and having the number of stamens equal or less than the number of corolla lobes. |
| The fusion of the corolla lobes to a sympetalous corolla is late taking place by meristem incorporation and fusion across the backs of the anther primordia. |
| Please take some time to observe the flower shapes among the various sympetalous flowers. |
