Are Billardiera and Calothamnus both types of genuses?
Billardiera Billardiera is a genus of small vines and shrubs which is endemic to Australia. The genus was first formally described in 1793 by botanist James Edward Smith who named it in honour of Jacques Labillardière, a French botanist.
Mammea Mammea is a flowering plant genus with about 70 species in the family Calophyllaceae. Its members are evergreen trees having edible fruits. The flowers are polygamous, with a unitary calyx opening into two or three valvate sepals. There are 4 to 8 petals. Berries are formed, containing 1 to 4 seeds. The leaves are rigid, coriaceous and often have pellucid dots.