This is also a modification of spike inflorescence having a fleshy axis, which remains enclosed by one or more large, often brightly coloured bracts, the spathes, e.g., in members of Araceae, Musaceae and Palmaceae. Sometimes, in monochasial or uniparous cyme successive axes may be at first curved or zig-zag (as in scorpioid cyme) but later on it becomes straight due to rapid growth, thus forming a central or pseudoaxis. In inflorescence: Indeterminate inflorescence.
It can be made up of racemes, spikes, corymbs, or umbels. It is evident that each stamen is a single male flower from the facts that it is articulated to a stalk and that it possesses a scaly bract at the base. This type of inflorescence is known as sympodial cyme as found in some members of Solanaceae (e.g., Solanum nigrum). Here the peduncle (main axis) is short and bears many branches which arise in an umbellate cluster. 5 mm) false panicles occur when the leaves subtending all axillary racemes on a lateral branch are lost. In this type of inflorescence the receptacle forms a hollow cavity with an apical opening guarded by scales. Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). Inflorescence: +- raceme (generally 0-1-branched) or panicle (generally 2-10-branched), terminal, nascent inflorescence present following stem growth, generally late spring through winter, remaining dormant 4-6 months prior to flower (except in Arctostaphylos pringlei subsp. Ginger and Bottlebrushes are among the most common example of spikelet raceme. The main axis of the inflorescence together with the latest axes, if present, is termed as the peduncle.
Examples of racemes include foxtail millet, snapdragon, del-phinium, Scotch broom, and stock. The flowers make a globose head, which is also called glomerule. (Fun memory clue: imagine the flowers are in a panic, and running off in all directions.) A panicle may have determinate or indeterminate growth. In this type of inflorescence the peduncle bears a terminal flower and stops growing. As nouns the difference between raceme and panicle. The examples are common in Palmaceae (Palmae) family. A capitulum or head is characteristic of Asteraceae (Compositae) family, e.g., sunflower (Helianthus annuus), marigold (Tagetes indica), safflower (Carthamus tinctorius). (ii) Disc florets (central tubular flowers). The lateral and succeeding branches again produce only one branch at a time like the primary one. Panicle: A branched raceme is called panicle. In this type of inflorescence the main axis does not end in a flower, but it grows continuously and develops flowers on its lateral sides in acropetal succession (i.e., the lower or outer flowers are older than the upper or inner ones).
Name the types of nitrogenous bases present in the RNA.
#Cyme vs raceme series#
Just above the glumes, there is series of florets, partly enclosed by them. When the lateral axes develop successively on the same side, forming a sort of helix, the cymose inflorescence is known as helicoid or one-sided cyme, e.g., in Begonia, Juncus, Hemerocallis and some members of Solanaceae. The typical examples are found in Poaceae (Gramineae) family such as-wheat, barley, sorghum, oats, etc. Some are in compound spikes (i.e., in wheat-Triticum aestivum), others are in racemes (e.g., in Festuca), while some are in panicles (e.g., in Avena).
is that raceme is (botany) an indeterminate inflorescence in which the flowers are arranged along a single central axis while panicle is (botany) a compound raceme. In the former case it becomes a compound raceme and in the latter case it becomes a compound cymose inflorescence. A corymb may have a paniculate branching structure, with the lower flowers having longer pedicels than the upper, thus giving a flattish top superficially resembling an umbel. The typical example is globe thistle (Echinops). A panicle is a cluster of flowers which grows on the end of a branch or shoot. A panicle may have determinate or indeterminate growth. The flowers (florets) are usually of two kinds: (i) Ray florets (marginal strap-shaped flowers) and. A panicle is a definite inflorescence that is increasingly more strongly and irregularly branched from the top to the bottom and where each branching has a terminal flower.
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