Cyathium consists of an involucre of 5 fused bracts that encloses a central achlamydeous pedicellate tricarpellary syncarpous female flower surrounded by a number ofcentrifugally arranged scorpioid groups of achalmydeous pedicellate unistaminate male flowers, e.g., Euphorbia, Poinsettia. Hypanthodium has a flask-shaped fleshy receptacle, a pore or ostiole lined by scales and a short canal bearing hair. Internally the receptacle bears male flowers towards ostiole, female floweres towards base and sterile female flowers between the two, e.g., Ficus (peepal, banyan, fig). Flowers of both these inflorescence are unisexual and pollinated by insects (entomophily). The insect pollinated .flowers are brightly coloured possess sweat fragrance and/or produce nectar i.e, contain nectar glands.