The Flowers of Myiophyllum spicatum L.

The Myrtales comprise one of the highest orders of the Archichlamydeae. They are characterized by the adhesion of calyx and receptacle, usually epigynous, always cyclic, with a definite number of parts in each whorl. The order is an important tropical one, and furnishes many products of commercial value. More recently the group has attracted widespread attention as it contains the genus Oenothera with which De Vries worked out his mutation theory