Spores are key to the success of the liverwort Spores are derived from sexual recombination, which provides the mechanism for new adaptations to the nursery and greenhouse environment. A single female reproductive structure produces thousands of spores. They are very tiny (less than 3.
Liverworts do not have the typical propagules associated with other common weeds. They don't have seeds or asexual propagules such as rhizomes and stolons that can spread and establish as new plants.
Question: Which of the four Gerbera plants above are infected with a deadly plant pathogen? Answer: Most observers would say the badly wilted plants, that is, the second and fourth from the left.