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Determinate simple inflorescences are generally called cymose. The main kind of cymose inflorescence is the cyme (pronounced / s aɪ m /), from the Latin cyma in the sense 'cabbage sprout', from Greek kuma 'anything swollen'). [9] [10] Cymes are further divided according to this scheme: Only one secondary axis: monochasium
This inflorescence of the terrestrial orchid Spathoglottis plicata shows indeterminate growth; note that the opening of flowers and production of fruits is proceeding upwards on the shoot. Cymose determinate inflorescences a. Myosotis b. Cerastium (dichasium) c. Sedum (scorpioid cyme) d. Scirpus lacustris (compound cyme) e. Dianthus (fascicle) f.
An organelle present in plant cells which contains chlorophyll. chlorosis An abnormal lack or paleness of color in a normally green organ. cilia. sing. cilium; adj. ciliate. Very small hairs or hair-like protrusions more or less confined to the margin s of an organ, as with eyelashes; in motile cells, minute, hair-like protrusions which aid ...
They usually present floral nectarys and the secretion of nectar comes from the perigonium or gynoecium, usually in the septa of the ovary. [32] [33] The flowers are arranged in cymose inflorescences at the apex of a scape, sometimes compressed and umbel-like, and are thus called "pseudoumbels". They are rarely reduced to solitary flowers.
This type of inflorescence is largely characteristic of grasses, such as oat and crabgrass, [a] as well as other plants such as pistachio and mamoncillo. Botanists use the term paniculate in two ways: "having a true panicle inflorescence" [b] as well as "having an inflorescence with the form but not necessarily the structure of a panicle".
The eukaryotic cell cycle consists of four distinct phases: G 1 phase, S phase (synthesis), G 2 phase (collectively known as interphase) and M phase (mitosis and cytokinesis). M phase is itself composed of two tightly coupled processes: mitosis, in which the cell's nucleus divides, and cytokinesis, in which the cell's cytoplasm and cell membrane divides forming two daughter cells.
Corymb is a botanical term for an inflorescence with the flowers growing in such a fashion that the outermost are borne on longer pedicels than the inner, bringing all flowers up to a common level. A corymb has a flattish top with a superficial resemblance towards an umbel , and may have a branching structure similar to a panicle .
A cell's ability to vitrify in the absence of metabolic activity, as in dormant periods, may be beneficial as a defense strategy. A solid glass cytoplasm would freeze subcellular structures in place, preventing damage, while allowing the transmission of tiny proteins and metabolites, helping to kickstart growth upon the cell's revival from ...