Are Tabernaemontana and Caltha both genus of flowering plants ?
Caltha Caltha is a genus of rhizomatous perennial flowering plants in the family Ranunculaceae ("buttercup family"), to which ten species have been assigned. They occur in moist environments in temperate and cold regions of both the Northern and Southern Hemispheres. Their leaves are generally heart-shaped or kidney-shaped, or are characteristically diplophyllous (the auricles of the leaf blades form distinctly inflexed appendages). Flowers are star shaped and mostly yellow to white. True petals and nectaries are missing but the five or more sepals are distinctly colored. As usual in the buttercup family there is a circle of stamens around (two to twenty-five) free carpels.
Tabernaemontana stapfiana Tabernaemontana stapfiana (commonly known as soccerball fruit) is a medium-sized tree in the family Apocynaceae. Its flowers feature white with yellow-throated corolla lobes. The fruit is fleshy grey-green, in pairs, each up to 20 cm in diameter and weighing up to several kilograms. Its habitat is montane evergreen forests from 700 – altitude. The plant is native to countries from Uganda south to Mozambique.