Polyadelphian.
/ˌpɒlɪəˈdɛlfɪə/, U.S. /ˈˌpɑliəˈdɛlfiə/ Botany. Now historical.
In the Linnaean artificial system: the eighteenth class of plants, comprising those whose flowers have numerous stamens united by their filaments into three or more bundles.
ΘΚΠ
the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > flower or flowering plant > [noun] > characterized by parts > characterized by stamens, pistils, or sex of flowers > classes based on
Triandria1748
heptandria1753
hexandria1753
icosandria1753
Monadelphia1753
Monandria1753
Monoecia1753
Octandria1753
Polyadelphia1753
polyandria1753
Polygamia1753
Pentandria1754
Monogynia1757
Pentagynia1757
Tetradynamia1760
Tetragynia1760
Tetrandria1760
Triœcia1760
Octagynia1765
hexagynia1777
polygynia1865
1753 Chambers's Cycl. Suppl. Polyadelphia,..a class of plants, whose stamina are formed into three or more separate bodies.
1797 Encycl. Brit. X. 479/1 Malaleuca [sic], the Cayputi tree, a genus of the polyandria order, belonging to the polyadelphia class of plants.
1835 J. S. Henslow Princ. Bot. §138. 149 The class Polyadelphia is exceedingly small (the genus Hypericum forming its most prominent feature).
1845 Littell's Living Age 26 Apr. 177/2 There are three species of the Theobroma..; this genus belongs to the class Polyadelphia, and to the order Pentagynia.
1967 Isis 58 308 Four classes, the Monadelphia, Diadelphia, Polyadelphia, and Syngenesia, are based upon the assemblage of filaments in one, two, or three bundles, and the anthers in one bundle.
Derivatives
ΘΚΠ
the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [adjective] > having or relating to parts > of or having stamens or pistils > of or having stamens or male > in specific quantity, form, or arrangement
castrate1704
syngenesious1753
pentandrious1754
pentandrous1757
polyandrous1757
polyadelphous1778
triandrious1786
polyandrian1787
gynandrian1791
monadelphous1806
monandrous1806
tetrandrous1806
perigynous1807
octandrousa1815
pleurogynous1819
hypogynous1821
icosandrian1828
octandrian1828
pentandrian1828
polyadelphian1828
tetradynamian1828
hexandrous1830
pentadelphous1830
tetradynamous1830
triadelphous1830
triandrous1830
icosandrous1836
corollifloral1839
indefinite1839
oligandrous1851
isadelphous1855
thalamifloral1857
thalamiflorous1857
phalangiform1858
polyandrious1858
allagostemonous1879
corolliflorous1880
obdiplostemonous1882
hypogynic1886
octandrious1890
Monadelphic1959
polyandric1976
1828 N. Webster Amer. Dict. Eng. Lang. Polyadelphian, having its stamens united in three or more bundles.
This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).
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n.1753