Embryo development differs in monocots and dicots. The process varies between dicots and monocots. These are typically more elongated in the leaves of monocots than in those of dicots. They are typically more elongated in the leaves of monocots than in those of dicots. Pepper plants belong to the magnoliids, which are angiosperms but neither monocots nor eudicots. The traditionally listed differences between monocots and "dicots" are as follows. The differences indicated are more true for monocots versus eudicots. They are mainly found in dicot plants except the family Liliaceae which are monocots. The following morphogenic events are only particular to eudicots, and not monocots. "Ceratophyllum" seems to group with the eudicots rather than with the monocots. Acoraceae has cellular endosperm development while other monocots are helobial. The remaining monocots are a paraphyletic unit. Species with one cotyledon are called monocotyledonous ("monocots"). The parallel leaf veins arise from the midrib (not typical of monocots). The orchid flower, like most flowers of monocots, has two whorls of sterile elements.