How are the flowers and fruits of Loganiaceae plants structured?

In the Loganiaceae family, which belongs to the Gentianales order, the floral and fruit structures are characterized by the following features:

Floral Structure

• Corolla: The flowers typically feature petals fused into a corolla tube, which terminates in four or five overlapping lobes.12
• Calyx and Stamens: The sepals are usually joined at the base, and the number of stamens corresponds to the number of petal lobes.2
• Ovary: In most members, the ovary is in a superior position. It is composed of two carpels and two locules, typically exhibiting axile placentation.2
• Arrangement: Flowers are generally organized in terminal clusters.1

Fruit Structure

• Diversity: The fruits of Loganiaceae are varied, ranging from capsules to fleshy drupes. Some species, such as the Natal orange, produce berries with edible pulp.12