antheridiumn.

Brit.

/ˌanθᵻˈrɪdɪəm/, U.S.

/ˌænθəˈrɪdiəm/

Inflections: Plural antheridia.

Origin: Formed within English, by compounding. Etymons: anther n., -idium comb. form.

Etymology: < anther n. + -idium comb. form. In sense 2 after scientific Latin antheridium (1828 or earlier).

Botany.

†1. Esp. in the terminology of T. Nuttall: the ring of united anthers in the flower of a plant of the genus Asclepias or related genera of the family Apocynaceae. Obsolete.

ΚΠ

1818 T. Nuttall Genera N. Amer. Plants I. 165 Antheridium (antheroid bodies) short and crustaceous, with salient margins, each lobe terminated by a broad, ovate, white, chaffy cusp.

1837 W. Darlington Flora Cestrica (ed. 2) 170 Angles or wings of the antheridium prominent, acute, or triangularly produced.

1864 A. Wood Class-bk. Bot. (new ed.) 592 Crown purple, twice as long as the antheridium.

2. In algae, fungi, and various lower plants: an organ that produces male gametes.

ΘΚΠ

the world > plants > part of plant > reproductive part(s) > spore or sporule > cryptogam or plant having spores > [noun] > parts of > antheridium or male sex organ

antheridium1833

staminidium1839

staminodium1848

1833 W. J. Hooker in J. E. Smith Eng. Flora V. 333 Capt. Carmichael finds this species [sc. Polysiphonia fastigiata] frequently bearing tufts of very minute, lanceolate, yellow, pod-shaped bodies (antheridia) on the apices of the branches.

1836 J. T. Mackay Flora Hibernica 205 Granules and antheridia very frequently produced [in Polysiphonia thuyoides].

1854 J. H. Balfour Man. Bot. 272 The antheridia were early noticed in the case of mosses.

1874 M. C. Cooke Fungi 169 An oblong cell, slightly curved,..an antheridium or organ of the male sex.

1936 W. Stiles Introd. Princ. Plant Physiol. xviii. 399 In the case of the antheridium the pressure produced results in the bursting of the organ with the release of the spermatozoids.

1987 R. L. Fletcher Seaweeds Brit. Isles III. i. 37 In oogamous reproduction, the female gametes..are usually produced singly..whilst the male gametes (termed antherozoids or sperm) are produced singly or in large numbers in antheridia.

2000 C. Tudge Variety of Life ii. xxiii. 552 But the megaspores and microspores of heterosporous plants, such as Selaginella, germinate to produce two different kinds of gametophyte, one bearing only archegonia and the other bearing only antheridia.

This entry has been updated (OED Third Edition, March 2016; most recently modified version published online December 2021).

单词	antheridium
释义	antheridiumn. Brit. /ˌanθᵻˈrɪdɪəm/, U.S. /ˌænθəˈrɪdiəm/ Inflections: Plural antheridia. Origin: Formed within English, by compounding. Etymons: anther n., -idium comb. form. Etymology: < anther n. + -idium comb. form. In sense 2 after scientific Latin antheridium (1828 or earlier). Botany. †1. Esp. in the terminology of T. Nuttall: the ring of united anthers in the flower of a plant of the genus Asclepias or related genera of the family Apocynaceae. Obsolete. ΚΠ 1818 T. Nuttall Genera N. Amer. Plants I. 165 Antheridium (antheroid bodies) short and crustaceous, with salient margins, each lobe terminated by a broad, ovate, white, chaffy cusp. 1837 W. Darlington Flora Cestrica (ed. 2) 170 Angles or wings of the antheridium prominent, acute, or triangularly produced. 1864 A. Wood Class-bk. Bot. (new ed.) 592 Crown purple, twice as long as the antheridium. 2. In algae, fungi, and various lower plants: an organ that produces male gametes. ΘΚΠ the world > plants > part of plant > reproductive part(s) > spore or sporule > cryptogam or plant having spores > [noun] > parts of > antheridium or male sex organ antheridium1833 staminidium1839 staminodium1848 1833 W. J. Hooker in J. E. Smith Eng. Flora V. 333 Capt. Carmichael finds this species [sc. Polysiphonia fastigiata] frequently bearing tufts of very minute, lanceolate, yellow, pod-shaped bodies (antheridia) on the apices of the branches. 1836 J. T. Mackay Flora Hibernica 205 Granules and antheridia very frequently produced [in Polysiphonia thuyoides]. 1854 J. H. Balfour Man. Bot. 272 The antheridia were early noticed in the case of mosses. 1874 M. C. Cooke Fungi 169 An oblong cell, slightly curved,..an antheridium or organ of the male sex. 1936 W. Stiles Introd. Princ. Plant Physiol. xviii. 399 In the case of the antheridium the pressure produced results in the bursting of the organ with the release of the spermatozoids. 1987 R. L. Fletcher Seaweeds Brit. Isles III. i. 37 In oogamous reproduction, the female gametes..are usually produced singly..whilst the male gametes (termed antherozoids or sperm) are produced singly or in large numbers in antheridia. 2000 C. Tudge Variety of Life ii. xxiii. 552 But the megaspores and microspores of heterosporous plants, such as Selaginella, germinate to produce two different kinds of gametophyte, one bearing only archegonia and the other bearing only antheridia. This entry has been updated (OED Third Edition, March 2016; most recently modified version published online December 2021). < n.1818
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