gametophyte

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Definition/MeaningWord/Phrase
hornworts; liverworts having a thalloid gametophyte; in some classification systems included in the class Hepaticopsida Anthocerotales , order Anthocerotales
(botany) development of an embryo without fertilization; especially the development in some ferns of a sporophyte from the gametophyte without fertilization apogamy
larger of the two types of spore produced in heterosporous plants; develops in ovule into a female gametophyte macrospore , megaspore
liverworts with gametophyte differentiated internally Marchantiales , order Marchantiales
female gametophyte produced by the megaspore of a plant that produces both microspore and megaspores megagametophyte
male gametophyte produced by a microspore microgametophyte
smaller of the two types of spore produced in heterosporous plants; develops in the pollen sac into a male gametophyte microspore
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