Spadix (botany) Typically, the stigmas are no longer receptive when pollen is released which prevents self-fertilization. We also have Compound Spadix Inflorescence in which the axis is branched. Usually whole Inflorescence is covered by a stiff boat shaped path for example- Coconut. Spadix (botany) In botany, a spadix ( ; plural spadices , ) is a type of spike inflorescence having small flowers borne on a fleshy stem. Spadices are typical of the family Araceae, the arums or aroids. The spadix is typically surrounded by a leaf-like curved bract known as a spathe. For example, the "flower" of the well known "Anthurium"
Beta decay atoms obtain a more stable ratio of protons to neutrons. The probability of a nuclide decaying due to beta and other forms of decay is determined by its nuclear binding energy. The binding energies of all existing nuclides form what is called the nuclear band or valley of stability. For either electron or positron emission to be energetically possible, the energy release (see below) or Q value must be positive. Beta decay is a consequence of the weak force, which is characterized by relatively lengthy decay times. Nucleons are composed of up quarks and down quarks, and the weak force