pentandrousadj.

Brit.

/pɛnˈtandrəs/, U.S.

/pɛnˈtændrəs/

Origin: Formed within English, by compounding; modelled on a Latin lexical item. Etymons: penta- comb. form, -androus comb. form.

Etymology: < penta- comb. form + -androus comb. form, after scientific Latin pentandrus (1737). Compare slightly earlier Pentandria n. and pentandrious adj.

Botany.

Originally: †designating or belonging to the Linnaean class or order Pentandria (obsolete). In later use: having five stamens.

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

1757 J. Hill Eden 9/2 The Student will..observe that whatever other Plant he finds, in whose Flower there are five Filaments plainly dispos'd, that is also of the pentandrous Class.

1772 R. Weston Univ. Botanist & Nurseryman III. 703 Arabian Pentandrous Trianthema.

1781 R. Pulteney Gen. View Writings Linnæus 358 It belongs to the Pentandrous order of the Polyadelphous class.

1806 J. Galpine Synoptical Compend Brit. Bot. 25 Tamarix. Flowers pentandrous.

1830 J. Lindley Introd. Nat. Syst. Bot. 220 The pentandrous corolla and 5 lobed calyx.

1875 A. W. Bennett & W. T. T. Dyer tr. J. von Sachs Text-bk. Bot. 531 The same probably also happens in the pentandrous Hypericineæ.

1940 Amer. Midland Naturalist 23 603 The type is abnormal in that many of the flowers are almost regular and pentandrous, a condition of random occurrence in many sections of the genus.

1966 Ann. Missouri Bot. Garden 53 115 The present revision includes all the native or introduced species of North and Central America except those with five stamens. These pentandrous species are chiefly natives of Mexico.

1997 Amer. Jrnl. Bot. 84 198 Two major clades are recognized: (1) the pentandrous species, and (2) an assemblage of at least four clades, in which the majority of the Neotropical, European and Asian species are found.

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

单词	pentandrous
释义	pentandrousadj. Brit. /pɛnˈtandrəs/, U.S. /pɛnˈtændrəs/ Origin: Formed within English, by compounding; modelled on a Latin lexical item. Etymons: penta- comb. form, -androus comb. form. Etymology: < penta- comb. form + -androus comb. form, after scientific Latin pentandrus (1737). Compare slightly earlier Pentandria n. and pentandrious adj. Botany. Originally: †designating or belonging to the Linnaean class or order Pentandria (obsolete). In later use: having five stamens. 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 1757 J. Hill Eden 9/2 The Student will..observe that whatever other Plant he finds, in whose Flower there are five Filaments plainly dispos'd, that is also of the pentandrous Class. 1772 R. Weston Univ. Botanist & Nurseryman III. 703 Arabian Pentandrous Trianthema. 1781 R. Pulteney Gen. View Writings Linnæus 358 It belongs to the Pentandrous order of the Polyadelphous class. 1806 J. Galpine Synoptical Compend Brit. Bot. 25 Tamarix. Flowers pentandrous. 1830 J. Lindley Introd. Nat. Syst. Bot. 220 The pentandrous corolla and 5 lobed calyx. 1875 A. W. Bennett & W. T. T. Dyer tr. J. von Sachs Text-bk. Bot. 531 The same probably also happens in the pentandrous Hypericineæ. 1940 Amer. Midland Naturalist 23 603 The type is abnormal in that many of the flowers are almost regular and pentandrous, a condition of random occurrence in many sections of the genus. 1966 Ann. Missouri Bot. Garden 53 115 The present revision includes all the native or introduced species of North and Central America except those with five stamens. These pentandrous species are chiefly natives of Mexico. 1997 Amer. Jrnl. Bot. 84 198 Two major clades are recognized: (1) the pentandrous species, and (2) an assemblage of at least four clades, in which the majority of the Neotropical, European and Asian species are found. This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022). < adj.1757
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