Embryo development differs in monocots and dicots. The process varies between dicots and monocots. Excluding monocots from the dicots makes the latter a paraphyletic group. Many more dicots suffer from the disease than do monocots. The diet comprises monocots, dicots, forbs, fruits and "acacia" pods (whenever available). 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. The traditionally listed differences between monocots and "dicots" are as follows. The parasitised plants are angiosperms, and most Peronosporaceae are pathogens of herbaceous dicots. Plants with two embryonic leaves are termed dicotyledonous ("dicots"). The dicots are the most diverse group of angiosperms. The traditional dicots are thus a paraphyletic group. Woody dicots are called hardwoods, e.g. oak, maple and walnut. Other native aquatic dicots here include water lilies and water milfoils. Aquatic moncots and dicots both occur in Australian waters.