| Among the vascular plants, both natural and induced apogamy and apospory are known. |
| Apospory and apogamy occur in bryophytes, pteridophytes, and angiosperms, whereas parthenogenesis occurs in ferns and angiosperms. |
| In contrast, apogamy is the development of 1n sporophytes without gametes and syngamy from vegetative cells of the gametophyte. |
| Finally, a form of haploid apogamy is known in which a cell of the female gametophyte other than an egg may develop into an embryo. |
| Other names for indiscriminate isolation are separate breeding and apogamy. |
| It includes parthenogenesis in animals, in which the new individual develops from the unfertilized egg, and apogamy in certain plants, in which the generative tissue may be the sporophyte or the gametophyte. |
