megasporangen.

Brit.

/ˌmɛɡəspəˈrandʒ/, U.S.

/ˌmɛɡəspəˈrændʒ/

Origin: Formed within English, by compounding. Etymons: mega- comb. form, sporange n.

Etymology: < mega- comb. form + sporange n. Compare slightly earlier macrosporange n., microsporange n., megasporangium n.

Botany. Now rare.

= megasporangium n.

ΘΚΠ

the world > plants > particular plants > moss > [noun] > club-moss or moss-like ferns > parts of

powder1672

oophoridium1847

oophorid1848

oosporangium1857

macrosporangium1862

rhizophore1875

megasporangium1886

megasporange1889

protophyll1891

prophyll1971

1857 A. Henfrey Elem. Course Bot. 599 In Pilularia,..all the parent-cells but one disappear in the megaspore-sporanges.]

1889 A. W. Bennett & G. R. M. Murray Handbk. Cryptogamic Bot. 11 It [sc. a spore-case] is a megasporange or a microsporange, according as it contains megaspores or microspores.

1907 Proc. Royal Soc. B. 79 473 The megasporange gives rise to but one thin-walled spore.

1922 Bot. Gaz. 74 133 Useful structures..can be formed by the elaboration of the vegetative tissue surrounding masses of sporogenous tissue, as has recently been demonstrated in the megasporange of Mazocarpon.

1952 Bull. Torrey Bot. Club 79 73 Juliano states that ‘the nucellus of the megasporange undergoes enlargement soon after fertilization’.

This entry has been updated (OED Third Edition, June 2001; most recently modified version published online March 2022).

单词	megasporange
释义	megasporangen. Brit. /ˌmɛɡəspəˈrandʒ/, U.S. /ˌmɛɡəspəˈrændʒ/ Origin: Formed within English, by compounding. Etymons: mega- comb. form, sporange n. Etymology: < mega- comb. form + sporange n. Compare slightly earlier macrosporange n., microsporange n., megasporangium n. Botany. Now rare. = megasporangium n. ΘΚΠ the world > plants > particular plants > moss > [noun] > club-moss or moss-like ferns > parts of powder1672 oophoridium1847 oophorid1848 oosporangium1857 macrosporangium1862 rhizophore1875 megasporangium1886 megasporange1889 protophyll1891 prophyll1971 1857 A. Henfrey Elem. Course Bot. 599 In Pilularia,..all the parent-cells but one disappear in the megaspore-sporanges.] 1889 A. W. Bennett & G. R. M. Murray Handbk. Cryptogamic Bot. 11 It [sc. a spore-case] is a megasporange or a microsporange, according as it contains megaspores or microspores. 1907 Proc. Royal Soc. B. 79 473 The megasporange gives rise to but one thin-walled spore. 1922 Bot. Gaz. 74 133 Useful structures..can be formed by the elaboration of the vegetative tissue surrounding masses of sporogenous tissue, as has recently been demonstrated in the megasporange of Mazocarpon. 1952 Bull. Torrey Bot. Club 79 73 Juliano states that ‘the nucellus of the megasporange undergoes enlargement soon after fertilization’. This entry has been updated (OED Third Edition, June 2001; most recently modified version published online March 2022). < n.1889
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