If Serissa is a genus of a flowering plant, what is Westringia a genus of?
Westringia Westringia is a genus of Australian shrubs. As with other members of the mint family their upper petal (or lip) is divided into two lobes. There are four stamens - the upper two are fertile while the lower two are reduced to staminodes. The leaves are in whorls of 3 or 4.
Sonerila The genus Sonerila Roxb. belongs to family Melastomaceae. This genus is characterized by presence of three petals (along with the genera "Stussenia" & "Lithobium") as opposed to five in the other members of the family. Most members of the genus prefer growing in shady habitats. It is a large genus including about 175 species.