polysporangiumn.

Brit.

/ˌpɒlɪspəˈran(d)ʒɪəm/, U.S.

/ˌpɑlispəˈrændʒiəm/,

/ˌpɑliˌspoʊˈrændʒiəm/

Inflections: Plural polysporangia.

Origin: Formed within English, by compounding. Etymons: poly- comb. form, sporangium n.

Etymology: < poly- comb. form + sporangium n. Compare slightly later monosporangium n., and also tetrasporangium n.

Botany.

A sporangium containing numerous spores, or containing polyspores, as in red algae.

ΘΚΠ

the world > plants > part of plant > reproductive part(s) > spore or sporule > [noun] > parts of or related to > spore-case

perithecium1800

conceptacle1819

sporangium1821

sporidium1821

receptacle1824

sporangiolum1824

spore-case1836

perispore1851

polyspore1855

perisporangium1856

sporange1857

thalamium1861

sporidiole1863

theke1872

macrosporange1882

polysporangium1890

1890 Cent. Dict. Polysporangium, a sporangium containing many spores.

1901 Bull. Torrey Bot. Club 28 264 Polysporangia variable in size..arise laterally from the erect filaments.

1955 G. M. Smith Cryptogamic Bot. (ed. 2) I. viii. 308 Instances are known where a thallus bears both tetrasporangia and bisporangia, or tetrasporangia and polysporangia.

1995 C. van den Hoek et al. Algae v. 57/1 ‘Polysporangia’, which produce more than four spores, are only modified tetrasporangia.

This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).

单词	polysporangium
释义	polysporangiumn. Brit. /ˌpɒlɪspəˈran(d)ʒɪəm/, U.S. /ˌpɑlispəˈrændʒiəm/, /ˌpɑliˌspoʊˈrændʒiəm/ Inflections: Plural polysporangia. Origin: Formed within English, by compounding. Etymons: poly- comb. form, sporangium n. Etymology: < poly- comb. form + sporangium n. Compare slightly later monosporangium n., and also tetrasporangium n. Botany. A sporangium containing numerous spores, or containing polyspores, as in red algae. ΘΚΠ the world > plants > part of plant > reproductive part(s) > spore or sporule > [noun] > parts of or related to > spore-case perithecium1800 conceptacle1819 sporangium1821 sporidium1821 receptacle1824 sporangiolum1824 spore-case1836 perispore1851 polyspore1855 perisporangium1856 sporange1857 thalamium1861 sporidiole1863 theke1872 macrosporange1882 polysporangium1890 1890 Cent. Dict. Polysporangium, a sporangium containing many spores. 1901 Bull. Torrey Bot. Club 28 264 Polysporangia variable in size..arise laterally from the erect filaments. 1955 G. M. Smith Cryptogamic Bot. (ed. 2) I. viii. 308 Instances are known where a thallus bears both tetrasporangia and bisporangia, or tetrasporangia and polysporangia. 1995 C. van den Hoek et al. Algae v. 57/1 ‘Polysporangia’, which produce more than four spores, are only modified tetrasporangia. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < n.1890
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