Pentandrian.

Brit.

/pɛnˈtandrɪə/, U.S.

/pɛnˈtændriə/

Origin: A borrowing from Latin. Etymon: Latin Pentandria.

Etymology: < scientific Latin Pentandria (Linnaeus Systema Naturæ (1735)) < penta- penta- comb. form + -andria (see Monandria n.). Compare slightly earlier Monandria n., polyandria n., etc., and slightly later Pentagynia n.

Botany. Now historical.

In the Linnaean artificial system: the fifth class of plants, comprising those having hermaphrodite flowers with five stamens; (also) an order characterized by flowers with five stamens in any of certain other classes.

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

1754 tr. C. Alston Diss. Bot. 84 Who, I pray, looking at the Tamariscus Germanica, B.P. that was unknown to him, which has ten stamina, would consult the fifth class, or Pentandria, for its character?

1785 T. Martyn tr. J.-J. Rousseau Lett. Elements Bot. ix. 92 In the fifth [class], Pentandria, some plants have more than their proper quota of stamens to the flower, at least when cultivated in gardens.

1829 T. Castle Introd. Systematical & Physiol. Bot. 145 Pentandria:—In this order of the class [sc. Monadelphia], we have such plants as produce flowers with five stamens... Sir J. E. Smith refers the family of passiflora or passion-flower, as unquestionable, to the class pentandria, order trigynia.

1883 Mind 8 396 Therein may be found a particular class, called pentandria. This class consists of hermaphrodite plants,—that is to say, of plants whose flower contains both stamina and pistil,—having five stamina or sperm-cells, with distinct filaments not connected with the pistil, or germ-cell.

1969 Isis 58 312 The genera classed under Pentandria proved to be so numerous they were difficult to recognize.

Derivatives

† pentandrian adj. Obsolete rare = pentandrous adj.

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. Pentandrian, having five stamens.

1876 J. Thomas Comprehensive Med. Dict. 678 Pentandria is the ‘Pentandrian class,’ or that comprising flowers with five stamens.

This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022).

单词	pentandria
释义	Pentandrian. Brit. /pɛnˈtandrɪə/, U.S. /pɛnˈtændriə/ Origin: A borrowing from Latin. Etymon: Latin Pentandria. Etymology: < scientific Latin Pentandria (Linnaeus Systema Naturæ (1735)) < penta- penta- comb. form + -andria (see Monandria n.). Compare slightly earlier Monandria n., polyandria n., etc., and slightly later Pentagynia n. Botany. Now historical. In the Linnaean artificial system: the fifth class of plants, comprising those having hermaphrodite flowers with five stamens; (also) an order characterized by flowers with five stamens in any of certain other classes. 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 1754 tr. C. Alston Diss. Bot. 84 Who, I pray, looking at the Tamariscus Germanica, B.P. that was unknown to him, which has ten stamina, would consult the fifth class, or Pentandria, for its character? 1785 T. Martyn tr. J.-J. Rousseau Lett. Elements Bot. ix. 92 In the fifth [class], Pentandria, some plants have more than their proper quota of stamens to the flower, at least when cultivated in gardens. 1829 T. Castle Introd. Systematical & Physiol. Bot. 145 Pentandria:—In this order of the class [sc. Monadelphia], we have such plants as produce flowers with five stamens... Sir J. E. Smith refers the family of passiflora or passion-flower, as unquestionable, to the class pentandria, order trigynia. 1883 Mind 8 396 Therein may be found a particular class, called pentandria. This class consists of hermaphrodite plants,—that is to say, of plants whose flower contains both stamina and pistil,—having five stamina or sperm-cells, with distinct filaments not connected with the pistil, or germ-cell. 1969 Isis 58 312 The genera classed under Pentandria proved to be so numerous they were difficult to recognize. Derivatives † pentandrian adj. Obsolete rare = pentandrous adj. 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. Pentandrian, having five stamens. 1876 J. Thomas Comprehensive Med. Dict. 678 Pentandria is the ‘Pentandrian class,’ or that comprising flowers with five stamens. This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022). < n.1754
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