ClipArt ETC
The Antheridium is the male organ of plants. Within it are produced the sperms or their equivalents, which fertilize the female cells or eggs.

Section through Antheridium of Liverwort

The Antheridium is the male organ of plants. Within it are produced the sperms or their equivalents,…

An illustration of liverwort (Hepatica): a, Thalloid stem with female branches; b, Thalloid stem with male branches. Hepatica is a genus of herbaceous perennial plants belonging to the buttercup family, Ranunculaceae. A native of central and northern Europe, Asia and northeastern North America, Hepatica is sometimes called liverleaf or "liverwort". It should not be confused with liverworts, which may also be called "Hepaticae". A few botanists include Hepatica within a wider interpretation of Anemone, as Anemone hepatica.

Hepatica

An illustration of liverwort (Hepatica): a, Thalloid stem with female branches; b, Thalloid stem with…

"Life-history of Liverwort (Marchantia polymorpha): 1 and 2, developing thallus; 2 shows the cup with gemmae; 3, section across thallus, showing chimney-shaped stoma and green cells under, and mucilage cell on left; 4, male hats; 5, development of antheridia; 6, antheridium nearly ripe; 7, antherozoid; 8, female hat; 9, 10, archegonia before fertilization; 11, 12, 13, fertilized egg dividing; 14, immature sporogonium, containing spores and elaters." -Hazeltine, 1894

Liverwort Life Cycle

"Life-history of Liverwort (Marchantia polymorpha): 1 and 2, developing thallus; 2 shows the cup with…

Leaf of Liverwort.

Leaf of Liverwort

Leaf of Liverwort.

"Scale-mosses. 1, Ptilidium ciliare (fringewort); 2, Lophocolea minor (liverwort)." -Whitney, 1911

Liverworts

"Scale-mosses. 1, Ptilidium ciliare (fringewort); 2, Lophocolea minor (liverwort)." -Whitney, 1911

Plagiochila is a large, common, and widespread genus of liverworts in order Jungermanniales. It is a member of the family Plagiochilaceae within that order. There may be anywhere from 500 to 1300 species, most of them from the tropics; the exact number is still under revision. The genus also has a wide distribution in temperate and arctic areas.

Phagiochila

Plagiochila is a large, common, and widespread genus of liverworts in order Jungermanniales. It is a…