siphonogamy

См. также в других словарях:

• siphonogamy —   Process of effecting fertilization in seed plants by means of pollen tubes …   Expanded glossary of Cycad terms

• siphonogamy — si·pho·nog·a·my …   English syllables

• siphonogamy — noun see siphonogamous * * * sīphonogˈamy noun (botany) Fertilization by pollen tube • • • Main Entry: ↑siphon …   Useful english dictionary

• Zoidogamy — is a type of plant reproduction in which male gametes (antherozoids) swim in a film of water to the female gametes. Zoidogamy is found in algae, bryophytes, pteridophytes, and some gymnosperms (others use siphonogamy). Zoidogamy is interesting… …   Wikipedia

• gymnosperm — gymnospermism, n. /jim neuh sperrm /, n. Bot. a vascular plant having seeds that are not enclosed in an ovary; a conifer or cycad. Cf. angiosperm. [1820 30; < NL gymnospermae name of type. See GYMNO , SPERM] * * * Any woody plant that reproduces… …   Universalium

• σιφωνογαμία — η, Ν βοτ. γονιμοποίηση με τη μεσολάβηση ενός σίφωνα, ενός γυρεοσωλήνα. [ΕΤΥΜΟΛ. Αντιδάνεια λ., πρβλ. αγγλ. siphonogamy < σίφωνας + γάμος] …   Dictionary of Greek