Germination Requirements
LThe germination process consists of a plant growing from its parent's spores. Since liverworts are seedless, the germination process does not involve the germination of seeds. There are certain germination requirements for liverworts. In order for asexual reproduction between male and female liverwort organisms to occur, the sex cells must be transferred from the male to the female. High rainfall allows the sperm cells from the male liverworts to penetrate into the female's reproductive system. Further asexual reproduction steps are carried out within the female's reproductive system. Liverworts also reproduce asexually. This occurs when gemmae, which are disks of tissues, are dispersed by rainfall. This results in the fragmentation of the thallus (vegetative tissue), which can result in a new plant being formed. The reoccurring theme in both asexual and sexual reproduction is water and humidity. Liverworts require heavy rainfall in order to germinate both sexually and asexually. Although sunlight is vital for many plants, exposure to the sun does not heavily impact the growth of the liverwort species. However, liverworts are photosynthetic plants and require exposure to the sun.
There are over 9000 unique, identifies liverwort species. There are certain environmental requirements that are required in order for liverworts to grow. Liverworts require a high amount of water in order to fill their spores for reproduction (both sexually and asexually). Liverworts grow vigorously in conditions with high humidity, high nutrient levels (especially nitrogen and phosphorus), and high soil moisture. In an environment that has any of these 3 conditions, it will be difficult to control liverworts (even when using herbicides). The soil's acidity does not impact non-vascular plants (such as liverworts) as much as vascular plants. Liverworts are able to grow by rocks and on soil, which makes the soil's condition a minimal factor when it comes to the growth of the plant.