Cotyledons
Cotyledon is one of the components of the plant seed embryo, located in the upper part of the embryo, with storage of nutrients or seedlings during the assimilation of the organ. No cotyledons without endosperm, because the storage of nutrients more, so particularly hypertrophy, such as legumes, cucurbitaceae and other plant seeds; gramineous plants cotyledons called "cotyledons" or "shield", its function is more special, with absorption And digestion; some gramineous plants, the opposite side of the embryo has a protrusion called "outer leaves". ...