Monadelphian.
/ˌmɒnəˈdɛlfɪə/, U.S. /ˌmɑnəˈdɛlfiə/ Botany. Now historical.
In the Linnaean artificial system: the sixteenth class of plants, comprising those with hermaphrodite flowers having the stamens united by their filaments below to form one set or tube.
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. Monadelphia,..a class of plants whose stamina or male parts, by reason of their filaments running in among one another, are all formed into one body.
1785 T. Martyn tr. J.-J. Rousseau Lett. Elements Bot. ix. 97 In the sixteenth class called Monadelphia, the filaments are united so as to form one regular membrane, at bottom.
1845 Encycl. Metrop. XXV. 634/2 Tigridia, in Botany, a genus so called by Jussieu... It belongs to the class Monadelphia, order Trigynia, and the natural family of Irideæ.
1892 S. Thomson Wild Flowers (ed. 22) 249 The staminal arrangement places the mallow tribe in the Linnæan class Monadelphia.
1988 Philos. Trans. (Royal Soc.) B. 320 7 In 1775 Aublet described seven South American genera.., namely..Acioa in Monadelphia Decandra.
Derivatives
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1828 N. Webster Amer. Dict. Eng. Lang. Monadelphian, having the stamens united in one body by the filaments.
This entry has been updated (OED Third Edition, September 2002; most recently modified version published online March 2022).
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n.1753