Seeds vary in size of Some are so small that they are barely visible to the naked eye; (e.g. poppy seeds, strawberry seeds.) o Some are quite large as in mango, plum, etc. - coconut. walL plants vary considerably but the basic structure of most seeds is the same*Cotyledons - seed deaf Types of Seed within the embryo of On the basis of endosperm, seeds are classified as: (i) Albuminous (endospermic) -(In such seeds, cotyledons are thin and membranous and endosperm persists, e.g. Monocot albuminous seeds : cereals, continue custard apple.) to exist:- (ii) Exalbuminous (non-endospermic) - (In such tै seeds, the cotyledon stores food and becomes thick embryo and fleshy; e.g. Monocot exalbuminous seeds cleus and Vallisneria, orchids, amorphophallus. Dicot exalbuminous seeds - Gram, pea, mango, mustard.)