Complex sentence: Like other members of the tribe Haemantheae to which it belongs, "Clivia" fruits are berries, which contain large fleshy seeds when ripe; these are often more than 1 cm in diameter.
Split into simpler sentences: Like other members of the tribe Haemantheae to which it belongs, "Clivia" fruits are berries. When ripe, they contain large fleshy seeds which are often more than 1 cm in diameter.