胚乳的发育 Development of Endosperm ●核型胚乳 Nuclear type ●细胞型胚乳 Cellular type ●沼生目型胚乳 Helobial type胚乳的发育 Development of Endosperm z 核型胚乳 Nuclear type Nuclear type z 细胞型胚乳 Cellular type Cellular type z 沼生目型胚乳 Helobial Helobial type