antheridial

_D_, giant liverwort (_Conocephalus_), natural size. _an. _ antheridial disc.

Elements of Structural and Systematic Botany For High Schools and Elementary College Courses Douglas Houghton Campbell

The sexual organs are developed in groups at the apices, the antheridial group usually terminating the main axis while the archegonia are borne on a lateral branch.

Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" Various

To study them in their natural position, thin longitudinal sections of the antheridial branch should be made.

Elements of Structural and Systematic Botany For High Schools and Elementary College Courses Douglas Houghton Campbell

Fructification: ovate spores and tufts of antheridial cells attached to the lateral ramuli, which consist of minute, radiating, dichotomous beaded filaments.

Scientific American Supplement, No. 384, May 12, 1883 Various

Reproduction by zoospores formed of the whole contents of a cell, with a crown of numerous cilia; resting spores formed in sporangial cells after fecundation by ciliated spermatozoids formed in antheridial cells.

Scientific American Supplement, No. 384, May 12, 1883 Various

In very few cases has anything representing prothallial development been observed; generally a small cell (the antheridial or generative cell) is cut off, leaving a larger tube-cell.

Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1 Various

The antheridial branches are often bright-colored, red or yellow, so as to be very conspicuous.

Elements of Structural and Systematic Botany For High Schools and Elementary College Courses Douglas Houghton Campbell

Fructification: zoospores produced from the cell contents of the filaments; resting spores formed from the contents of particular cells after impregnation by ciliated spermatozoids produced in distinct antheridial cells.

Scientific American Supplement, No. 384, May 12, 1883 Various

The antheridial branches arise from the main filaments or from oogonial branches, sometimes exclusively from one or the other, in other species from both.

Transactions of the American Philosophical Society 1771

When the plants become old, these delicate antheridial branches often disappear, leaving the antheridia adhering to the oogonia without indication of their origin.

Transactions of the American Philosophical Society 1771