Mass of haploid cellular tissue surrounding the embryo in a gymnosperm seed; analogous in function but not in origin to the endosperm of angiosperm seeds.

Expanded glossary of Cycad terms . 2014.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • megagametophyte — noun Date: 1915 the female gametophyte produced by a megaspore …   New Collegiate Dictionary

  • megagametophyte — megagametophytic /meg euh geuh mee teuh fit ik, gam i /, adj. /meg euh geuh mee teuh fuyt /, n. Bot. the female gametophyte in seed plants. [1930 35; MEGA + GAMETOPHYTE] * * * …   Universalium

  • megagametophyte — noun a) Any gametophyte that develops from a megaspore b) A female gametophyte …   Wiktionary

  • megagametophyte — mega·ga·me·to·phyte (meg″ə gə meґto fīt) [mega + gameto + phyte] the female gametophyte in heterosporous plants, developed from the megaspore …   Medical dictionary

  • megagametophyte — mega·gametophyte …   English syllables

  • megagametophyte — meg•a•ga•me•to•phyte [[t]ˌmɛg ə gəˈmi təˌfaɪt[/t]] n. bot the female gametophyte in seed plants • Etymology: 1930–35 meg a•ga•me to•phyt′ic gəˌmi təˈfɪt ɪk, ˌgæm ɪ adj …   From formal English to slang

  • megagametophyte — The female gametophyte; the plant that develops from a megaspore …   Glossary of Biotechnology

  • megagametophyte — noun the female gametophyte produced by the megaspore of a plant that produces both microspore and megaspores • Hypernyms: ↑gametophyte …   Useful english dictionary

  • Ovule — This article is about the plant structure. For animal ovules, see ovum. Micropyle and Ovular redirect here. For the structure in animals, see Micropyle (zoology). For the shape, see oval. Location of ovules inside a Helleborus foetidus flower… …   Wikipedia

  • angiosperm — /an jee euh sperrm /, n. Bot. a plant having its seeds enclosed in an ovary; a flowering plant. Cf. gymnosperm. [ANGIO + SPERM] * * * ▪ plant Introduction       any member of the more than 300,000 species of flowering plants (division Anthophyta) …   Universalium

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”