1. Experiments on grafting between Capsicum annuum L. var. fasciculatum Irish and var. grossum Sendt. were carried out in 1954.
2. Distinctive transformation in fruit shape, which might be due to an effect of grafting, was observed in two grafted plants, and the transformed fruits coexisted with the standard ones.
3. The variation in fruit shape appearing in the first and second selfed generations was investigated. It was found that the diagnostic characters of transformed fruit were transmitted to the progeny of the following two generations.
4. Such variation as found in fruit shape of the grafted plants and their progeny was not observed on the control plants for three successive generations.
5. The variation in F1 plants obtained by sexual crossing between the same two varieties was essentially different from that of the grafted plants and the progeny.