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Ceratolobus (family Palmae) A genus of climbing palms (rattans) in which the stems are clustered and the leaves have a spiny cirrus (whip-like tip), some of them with fishtail-shaped leaflets. They are dioecious. The inflorescence is entirely enclosed in a single, flattened bract with a slit-like opening. The fruits are scaly, and contain 1 seed with a thin fleshy testa. The cane is not used. There are 6 species, occurring in Sumatra, Malaya, Java, and Borneo.