Editing Inflorescence (section)

===Terminal flower===
Plant organs can grow according to two different schemes, namely [[monopodial]] or '''[[racemose]]''' and [[sympodial]] or '''cymose'''. In inflorescences these two different growth patterns are called [[Indeterminate growth|indeterminate]] and determinate respectively, and indicate whether a terminal flower is formed and where flowering starts within the inflorescence.
* '''Indeterminate inflorescence''': [[Monopodial]] (racemose) growth. The terminal bud keeps growing and forming lateral flowers. A terminal flower is never formed.
* '''Determinate inflorescence''': [[Sympodial]] (cymose) growth. The terminal bud forms a terminal flower and then dies out. Other flowers then grow from lateral buds.

Indeterminate and determinate inflorescences are sometimes referred to as '''open''' and '''closed''' inflorescences respectively. The indeterminate patterning of flowers is derived from determinate flowers. It is suggested that indeterminate flowers have a common mechanism that prevents terminal flower growth. Based on phylogenetic analyses, this mechanism arose independently multiple times in different species.<ref name=":32">{{Cite journal|last1=Bradley|first1=Desmond|last2=Ratcliffe|first2=Oliver|last3=Vincent|first3=Coral|last4=Carpenter|first4=Rosemary|author-link4=Rosemary Carpenter|last5=Coen|first5=Enrico|date=1997-01-03|title=Inflorescence Commitment and Architecture in Arabidopsis|journal=Science|language=en|volume=275|issue=5296|pages=80–83|doi=10.1126/science.275.5296.80|issn=0036-8075|pmid=8974397|s2cid=20301629}}</ref>

In an '''indeterminate inflorescence''' there is no true terminal flower and the stem usually has a rudimentary end. In many cases the last true flower formed by the terminal bud ('''subterminal''' flower) straightens up, appearing to be a terminal flower. Often a vestige of the terminal bud may be noticed higher on the stem.

<gallery>
Image:Offener_Blütenstand_(inflorescence).svg|Indeterminate inflorescence with a perfect acropetal maturation
Image:Offener_Blütenstand_(inflorescence)_m_K.svg|Indeterminate inflorescence with an acropetal maturation and lateral flower buds
Image:Pseudoterminalbluete (inflorescence).svg|Indeterminate inflorescence with the subterminal flower to simulate the terminal one (vestige present)
</gallery>

In '''determinate inflorescences''' the terminal flower is usually the first to mature (precursive development), while the others tend to mature starting from the base of the stem. This pattern is called '''acropetal''' maturation. When flowers start to mature from the top of the stem, maturation is '''basipetal''', whereas when the central mature first, maturation is '''divergent'''.

<gallery>
Image:Akropetale Effloration (inflorescence).svg|Determinate inflorescence with acropetal maturation
Image:Basipetale effloration (inflorescence).svg|Determinate inflorescence with basipetal maturation
Image:Divergente effloration (inflorescence).svg|Determinate inflorescence with divergent maturation
</gallery>