Natural parthenogenesis is mainly of two types. These are-
- Haploid parthenogenesis: If the haploid egg produced by meiosis develops into an embryo without fertilization, it is called haploid parthenogenesis. The organisms produced in this process are haploid and sterile. For example – bee, bolata, tobacco, bitter gourd (Solanum nigrum), purple orchid (Orchis maculata) etc.
- Diploid parthenogenesis: If the diploid egg produced by the process of mitosis develops into an embryo without fertilization, it is called diploid parthenogenesis. The organisms produced in this process are diploid. Such as Parthenium (Parthenium argentatum), Tobacco (Nicotiana tabacum), Taraxacum (Taraxacum albidum) etc.