inflorescence defined in 1951 yearinflorescence - inflorescence;
inflorescence - Flowering shoot. Inflorescences are grouped according to method of branching as (a) indefinite or racemose; (b) definite or cymose. In (a) branching in monopodial. The inflorescence consists of a main axis increasing in length by growth at tip and giving rise to lateral branches bearing flowers. The flowers open in succession from below upwards, or, if inflorescence axis is short and flattened, from outside inwards. Following types of indefinite inflorescence are recognized: Raceme, with a main axis bearing stalked flowers; e.g. lupin, foxglove; Panicle, compound raceme, e.g. oat; Corymb, a raceme with flowers borne at same level, due to elongation of stalks (pedicels) of lower flowers, e.g. candytuft; Spike, a raceme with sessile flowers, e.g. plantain; Spadix, a form of spike with thick fleshy axis, e.g. cuckoo pint; Catkin, a spike of unisexual, reduced flowers, often pendulous, e.g. hazel, birch; Umbel, a raceme in which the axis has not lengthened so that the flower stalks arise at the same point, the flowers in a head with the oldest at the outside, youngest in the centre, e.g. carrot, cow parsley; Capitulum, in which axis of inflorescence is flattened, laterally expanded with growing point in centre, and bearing closely crowded, sessile flowers, the oldest at the margin, the youngest in the centre, e.g. dandelion. In (b) branching is sympodial. The main axis ends in a flower and further development takes place by growth of lateral branches, each of which behaves in the same way. The cyme is described as a Monochasium when each branch of the inflorescence bears one other branch, e.g. iris, and as a Dichasium when each branch gives rise to two other branches, e.g. stitchwort. Many inflorescences are mixed, partly indefinite, partly definite, e.g. horse-chestnut, a raceme of cymes.
near inflorescence in Knolik
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