How To Use archegonium In A Sentence
- -- _A_, young embryo of _Funaria_, still enclosed within the base of the archegonium, × 300. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses
- In all the Archegoniate (including the majority of gymnosperms) fertilization and the first critical phases of embryogeny occur within the shelter provided by the archegonium and the adjacent gametophytic tissue.
- The sexual generation is a small green thalloid structure called a prothallium, which bears antheridia and archegonia, each archegonium having a neck-canal and oosphere, which is fertilized just as in the moss. Scientific American Supplement, No. 531, March 6, 1886
- The archegonium is the female reproductive organ, which produces eggs. Undefined
- It remains for long enclosed within the calyptra formed by the further development of the archegonial wall and surmounted by the neck of the archegonium. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"
- In both cases the prothallium is small, and often scarcely protrudes beyond the spore, and may be reduced to a single archegonium or antheridium (Fig. 71, _B_, _C_) with only one or two cells representing the vegetative cells of the prothallium (_v_). Elements of Structural and Systematic Botany For High Schools and Elementary College Courses
- In this way it can be easily forced out of the archegonium, and then by thoroughly washing away the potash, neutralizing if necessary with a little acetic acid, very beautiful preparations may be made. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses
- The female organ in the bryophytes is called an "archegonium," and differs considerably from anything we have yet studied, but recalls somewhat the structure of the oögonium of _Chara_. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses
- Shortly before the archegonium opens, the canal cells become disorganized in the same way as in the bryophytes, and the protoplasm of the central cell contracts to form the egg cell which shows a large, central nucleus, and in favorable cases, a clear space at the top called the "receptive spot," as it is here that the spermatozoid enters. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses
- The two growing points on the side of the embryo nearest the archegonium neck grow faster than the others, one of these outstripping the other, and soon becoming recognizable as the first leaf of the embryo (Fig. 67, _A_, _L_). Elements of Structural and Systematic Botany For High Schools and Elementary College Courses
