from The Century Dictionary and Cyclopedia
- In botany, unable to fertilize itself with its own pollen: said of a flower or a plant.
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With plants, so far is cultivation from giving a tendency towards sterility between distinct species, that in several well-authenticated cases already alluded to, certain plants have been affected in an opposite manner, for they have become self-impotent whilst still retaining the capacity of fertilising, and being fertilised by, other species.
Cases nearly similar to those observed by Scott were recorded by Gartner and Kolreuter, but in these instances only certain individuals were self-impotent.