different between sporophyte vs calyptra

English

Etymology

From sporo- (“spore”) +? -phyte (“plant”).

Noun

sporophyte (plural sporophytes)

1. (botany) A plant (or the diploid phase in its life cycle) which produces spores by meiosis in order to produce gametophytes.

Related terms

• megasporophyte
• sporangium
• spore
• sporogenesis
• sporophytic

Translations

See also

• gametophyte

English

Etymology

From Ancient Greek ???????? (kalúptra, “covering or veiling”).

Noun

calyptra (plural calyptras or calyptrae)

1. (botany) In bryophytes, a thin, hood of tissue that forms from the archegonium and covers the developing sporophyte and is shed as it ripens.
2. (botany) any cap-like covering of a flower or fruit, such as the operculum over the unopened buds of Eucalyptus flowers
3. (botany) Any of various coverings at the tips of structures, in the terminology of various authors; for example rootcaps and the apical cells of trichomes.
4. (entomology) In flies such as the housefly, Musca, in the taxonomic order Diptera, zoological section Schizophora, subsection Calyptrata, the calyptra is a membranous rearward extension of the forewing; it covers the haltere.

Translations

References

Latin

Etymology

Borrowed from Ancient Greek ????????? (kalúptr?).

Pronunciation

• (Classical) IPA^(key): /ka?lyp.tra/, [kä?l?pt??ä]
• (Ecclesiastical) IPA^(key): /ka?lip.tra/, [k??lipt???]

Noun

calyptra f (genitive calyptrae); first declension

1. A kind of veil used by women

Declension

First-declension noun.

References

• calyptra in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• calyptra in Gaffiot, Félix (1934) Dictionnaire illustré Latin-Français, Hachette