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archegonium
(redirected from archegonial)

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archegonium

Female sex organ found in bryophytes (mosses and liverworts), pteridophytes (ferns, club mosses, and horsetails), and some gymnosperms. It is a multicellular, flask-shaped structure consisting of two parts: the swollen base or venter containing the egg cell, and the long, narrow neck. When the egg cell is mature, the cells of the neck dissolve, allowing the passage of the male gametes, or antherozoids.



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Hairs appeared on the dorsal and ventral surfaces of the cushions in the archegonial regions as or after archegonia had formed.
Comparative studies on gametophyte morphology and development of ... by Chen, Gui-Ju; Cheng, Xiao; Liu, Bao-Dong; Jiao, Yu / American Fern Journal
Differences among species include spore size, germination time, formation time of the gametangia, gametophyte margin shape, number of archegonial neck cells and shapes of the antheridial
Gametophyte morphology and development of six Chinese species of ... by Zhang, K.M.; Shi, L.; Zhang, X.C.; Jiang, C.D.; Tim-Chun, W.L. / American Fern Journal
The length of the archegonial neck was about 70 [micro]m long.
The Gametophyte of Lycopodiella prostrata by Whittier, Dean P.; Carter, Richard / American Fern Journal
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