apogamyn.

Brit.

/əˈpɒɡəmi/, U.S.

/əˈpɑɡəmi/

Etymology: < Greek ἀπό apo- prefix + γάμος marriage (compare gamo- comb. form).

Botany.

Absence of sexual reproduction; asexual reproduction, agamogenesis; spec. in ferns and other cryptogams, production of the perfect plant directly from a bud on the prothallus instead of by the usual sexual process. (Cf. apospory n., etc.)

ΘΚΠ

the world > plants > part of plant > reproductive part(s) > spore or sporule > cryptogam or plant having spores > [noun] > reproduction by means of spores

sporophore1875

apogamy1878

1878 S. H. Vines in Jrnl. Bot., Brit. & Foreign 16 360 A transition from an oophore to a sporophore without the intervention of sexual reproductive organs. Apogamy (De Bary).

1886 S. H. Vines in Encycl. Brit. XX. 431/2 By the suppression either of the sexually produced spore or of the asexually produced spore; the former is an instance of apogamy, the latter of apospory.

1921 Ann. Bot. 35 184 We see..in the true apogamy of other species, a further manifestation of the powers of heterosis..ending in apomictical reproduction.

Derivatives

apogamic adj.

/æpəʊˈɡæmɪk/ characterized by or of the nature of apogamy; agamogenetic (spec. in the way described above).

ΘΚΠ

the world > plants > part of plant > reproductive part(s) > spore or sporule > cryptogam or plant having spores > [adjective]

sexless1757

cryptogamous1781

cryptogamic1785

cryptogamical?1791

asexual1795

aetheogamous1830

amphigamous1841

acrogenic1844

apogamous1878

apogamic1886

1886 Jrnl. Royal Microsc. Soc. 6 298 The author could not detect any act of impregnation [in a parasite on the olive], and believes that reproduction is apogamic.

apogamous adj.

/əˈpɒɡəməs/ = apogamic adj.

ΘΚΠ

the world > plants > part of plant > reproductive part(s) > spore or sporule > cryptogam or plant having spores > [adjective]

sexless1757

cryptogamous1781

cryptogamic1785

cryptogamical?1791

asexual1795

aetheogamous1830

amphigamous1841

acrogenic1844

apogamous1878

apogamic1886

1878 S. H. Vines in Jrnl. Bot., Brit. & Foreign 16 361 We may speak of this plant as being ‘aposporous’, using a word which is symmetrical with the term ‘apogamous’, applied by De Bary to those Ferns in whose life-history no process of sexual reproduction occurs.

1883 Ann. Rep. Board Regents Smithsonian Inst. 1881 403 Forms where oogonia are found without male pollinodia..considered as representing a distinct apogamous species.

aˈpogamously adv.

ΚΠ

1886 S. H. Vines in Encycl. Brit. XX. 431/1 [Spores] formed..without a sexual process—in a word, apogamously.

This entry has not yet been fully updated (first published 1933; most recently modified version published online September 2022).

单词	apogamy
释义	apogamyn. Brit. /əˈpɒɡəmi/, U.S. /əˈpɑɡəmi/ Etymology: < Greek ἀπό apo- prefix + γάμος marriage (compare gamo- comb. form). Botany. Absence of sexual reproduction; asexual reproduction, agamogenesis; spec. in ferns and other cryptogams, production of the perfect plant directly from a bud on the prothallus instead of by the usual sexual process. (Cf. apospory n., etc.) ΘΚΠ the world > plants > part of plant > reproductive part(s) > spore or sporule > cryptogam or plant having spores > [noun] > reproduction by means of spores sporophore1875 apogamy1878 1878 S. H. Vines in Jrnl. Bot., Brit. & Foreign 16 360 A transition from an oophore to a sporophore without the intervention of sexual reproductive organs. Apogamy (De Bary). 1886 S. H. Vines in Encycl. Brit. XX. 431/2 By the suppression either of the sexually produced spore or of the asexually produced spore; the former is an instance of apogamy, the latter of apospory. 1921 Ann. Bot. 35 184 We see..in the true apogamy of other species, a further manifestation of the powers of heterosis..ending in apomictical reproduction. Derivatives apogamic adj. /æpəʊˈɡæmɪk/ characterized by or of the nature of apogamy; agamogenetic (spec. in the way described above). ΘΚΠ the world > plants > part of plant > reproductive part(s) > spore or sporule > cryptogam or plant having spores > [adjective] sexless1757 cryptogamous1781 cryptogamic1785 cryptogamical?1791 asexual1795 aetheogamous1830 amphigamous1841 acrogenic1844 apogamous1878 apogamic1886 1886 Jrnl. Royal Microsc. Soc. 6 298 The author could not detect any act of impregnation [in a parasite on the olive], and believes that reproduction is apogamic. apogamous adj. /əˈpɒɡəməs/ = apogamic adj. ΘΚΠ the world > plants > part of plant > reproductive part(s) > spore or sporule > cryptogam or plant having spores > [adjective] sexless1757 cryptogamous1781 cryptogamic1785 cryptogamical?1791 asexual1795 aetheogamous1830 amphigamous1841 acrogenic1844 apogamous1878 apogamic1886 1878 S. H. Vines in Jrnl. Bot., Brit. & Foreign 16 361 We may speak of this plant as being ‘aposporous’, using a word which is symmetrical with the term ‘apogamous’, applied by De Bary to those Ferns in whose life-history no process of sexual reproduction occurs. 1883 Ann. Rep. Board Regents Smithsonian Inst. 1881 403 Forms where oogonia are found without male pollinodia..considered as representing a distinct apogamous species. aˈpogamously adv. ΚΠ 1886 S. H. Vines in Encycl. Brit. XX. 431/1 [Spores] formed..without a sexual process—in a word, apogamously. This entry has not yet been fully updated (first published 1933; most recently modified version published online September 2022). < n.1878
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