The biparous cyme is found in Ipomea, Stellaria, etc. The biparous type usually passes into a uniparous cyme by the suppression of one of the two branches at each subsequent branching. Which of the two daughter axes again ends in a flower and produces two daughter axes which continue branching in the same way. Biparous Cyme: The main axis ends in a flower and produces two daughter axes.It is also called Sympodial Cyme, therefore. In both cases, the basal portions of the successive daughter axes become straightened up, to form a false central axis or Sympodium. (b) Helicoid Cyme: Successive daughter axes are developed on the same side, either right or left, forming a spiral, e.g., in Begonia and some Solanaceae. (a) Scorpioid cyme: successive daughter axes develop on right and left alternately, forming a zigzag, as in Freesia. Uniparous Cyme: The main axis ends in a flower below which a daughter axis is produced which again ends in a flower.The male flowers are present near the apex while the female flowers occupy the rest of the surface, e.g., Banyan, Pepal.Ĭymose Inflorescence may be Uniparous, Biparous, or Multiparous. Unisexual flowers develop on the inner surface of the hollow receptacle. hypanthium: the receptacle grows upwards along its margins and forms a hollow, pear-shaped structure, which an apical opening guarded by scales.This type of inflorescence is characteristic of the composite. The capitulum may be homogamous, if all flowers are of the same kind, as in Sonchus, in which the flowers are ligulate (strap-shaped) and bisexual, or heterogamous, in which the flowers are of two types, as in sunflower, the Disc-Florets, tubular and bisexual, occupying the center of the receptacle and the ray florets, ligulate and pistillate or neuter, present at the periphery of the receptacle. The receptacle is surrounded at the base by overlapping bracts which form an Involucre. The young flowers are present in the center of the receptacle while the older ones toward the periphery. The florets are crowded on the upper surface of the receptacle and while the inflorescence looks like a single flower. The flowers are small and are known as Florets. Capitulum: The main axis is reduced to a flat, concave, or convex disc, the Receptacle.This inflorescence is the characteristics of Umbelliferon. All ‘the pediculate flowers arise From the tip of the main axis at one level and the older ones towards the periphery, as in cherry. Simple umbel: The main axis above the first flower is so much shortened that the internodes between the successive flowers become suppressed.Fleshy spike enclosed in one or bracts, called Spathe e.g., in banana, palm. Spadix: It is a branched or unbranched thick.Catkin: It is a Pendulous spike with a pendulous axis bearing unisexual flowers.Spikelet: These are small dry spikes having only one or a few sessile flowers surrounded by special bracts at the base called Glumes, e.g., in Grasses, Wheat, Oat, etc.Spike: The main axis elongated bearing sessile flowers, as in Verbena, Bottle-brash.Corymbose Raceme: Inflorescence corymbose in the flowering Stage but later on Becomes a simple raceme due to elongation of axis e.g., in Brassica.The pedicels of older flowers are longer than those of younger ones, so that all flowers lie at the same level, as in fibers (candytuft). Corymb: The main axis comparatively short.The pedicels of flowers are of the size, e.g., in Larkspur. The main axis may be elongated, shortened, or flattened into a Therefore the classification of Racemose Inflorescence is based on the Development of the main axis and pedicels of the flowers. There is an arrangement of flowers in them is centrifugal i.e., the young flowers are towards the periphery and the older ones towards the center. In a cymose inflorescence, the flowers usually form Clusters. The flowers develop in Basipetal Succession, i.e., the terminal flower is the oldest and the lateral ones are younger. One, two, or more lateral branches develop below the terminal flowers, each ending in a flower and producing daughter axes. Cymose Inflorescence: In this type of inflorescence, the main axis soon ends Flower.In such cases, the arrangement of flowers is Centripetal, i.e., the oldest flowers towards the periphery and the youngest ones towards the Centre. The main axis of a racemose inflorescence is sometimes may be compressed and flattened into a disc, bearing a cluster of flowers on its upper surface. The flowers are developed In acropetal Succession, i.e., the oldest flowers are towards the base of the inflorescence and the youngest ones towards the apex. Racemose Inflorescence: In this type of inflorescence the axis continues its growth until the last e flower is formed at its apex.