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The axillary bud (or lateral bud) is an embryonic or organogenic shoot located in the axil of a leaf. Each bud has the potential to form shoots, and may be specialized in producing either vegetative shoots (stems and branches) or reproductive shoots ( flowers ).
Latent bud – an axillary bud whose development is inhibited, sometimes for many years, due to the influence of apical and other buds. Also known as a dormant bud. Leaf bud – a bud that produces a leafy shoot. Mixed – buds that have both embryonic flowers and leaves. Naked – Pseudoterminal – Reproductive – buds with embryonic flowers ...
In a bud or flower bud, the relative arrangement of the sepals or petals of each flower whorl is called vernation. This arrangement must be observed in the flower bud because in the fully open flower the floral parts are often so far separated from each other that the vernation cannot be determined. There are six main types of vernation.
A modified leaf associated with a flower or inflorescence and differing in shape, size, or color from other leaves (and without an axillary bud). bracteate Possessing bract s. bracteole A small bract borne singly or in pairs on the pedicel or calyx; synonymous with bractlet. bracteolate Possessing bracteole s (bractlets). bracteose Having many ...
The term is usable as a synonym of resting, but is better employed for buds waiting undeveloped for years, for example epicormic buds; pseudoterminal, for an axillary bud taking over the function of a terminal bud (characteristic of species whose growth is sympodial: terminal bud dies and is replaced by the closer axillary bud, for examples ...
Adventitious buds develop from places other than a shoot apical meristem, which occurs at the tip of a stem, or on a shoot node, at the leaf axil, the bud being left there during primary growth. They may develop on roots or leaves, or on shoots as a new growth. Shoot apical meristems produce one or more axillary or lateral buds at each node.
The nodes are the points of attachment for leaves and can hold one or more leaves. There are sometimes axillary buds between the stem and leaf which can grow into branches (with leaves, conifer cones, or flowers). [2] Adventitious roots (e.g. brace roots) may also be produced from the nodes. Vines may produce tendrils from nodes.
The development of buds in axillary cauliflorous species occurs through either the re-use of the same position or old tissue over seasons of growth or release from dormancy. [5] In both cases, vascularization of the bud must occur from pre-existing tissue, such as the pith. [6] In Cercis canadensis, dormant buds break annually in a sympodial ...