 |
|
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
|
|
archegonium
A flask-shaped female sex organ or all plants except algae. Bryophytes (liverworts, hornworts, and mosses), pteridophytes (club mosses, ferns, and horsetails), and many gymnosperms (seed-bearing plants) have archegonia. Female gametes (ova) develop in the base of the "flask." At fertilization the cells forming the "neck" of the flask disintegrate, allowing male gametes (antherozoids) to enter.
Related category
• BOTANY
Also on this site:
Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History
Transport Concepts & Designs (partner site)