Inclusions were found in epidermal plastids ofBeta vulgarisL., by the use of the electron microscope. One type of inclusion resembles the membrane‐bound plastid inclusions found by others in various meristematic plant cells; the other does not appear to have been described before. The second type of inclusion is not membrane‐bound and appears elongated and fibrillar in longisection. The elongated plastid inclusion sometimes becomes quite large. It is postulated thatBetaepidermal cells may store two different proteins under some conditions.