Complex sentence: The calyx consists of four lanceolate green leaves, while the corolla consists of four linear acute ones, of a similar color and both the calyx and the corolla remain on the plant until the fruit ripens.
Split into simpler sentences: The calyx consists of four lanceolate green leaves, while the corolla consists of four linear acute ones, of a similar color. Both the calyx and the corolla remain on the plant until the fruit ripens.