PTERIDOLOGY | SELAGINELLA
MALE & FEMALE GAMETOPHYTE DEVELOPMENT MALE GAMETOPHYTE * 0.015 to 0.05 ml * It has two walls , outer exine and inner intine * Exine - thick , scluptured and also called as exospore * Intine - thin, delicate .also called endospore * It consists of reserve food materials * Up to 13 celled condition - development is inner * Pollination is also called small polination * After liberation - numerous development * 4 primary androgonial cell - androgonial mother cell * Anthrozites - antherozoid FEMALE GAMETOPHYTE * 1.5 to 5 mm * It has two walls exine , mesospore and intine * Has reserve food materials * Germination takes place inner sites * It totally depends on the species * Germination * Nucleus - numerous divition - formation of free nucleus * it has large vacuole - peripheral side Wall formation after numerous divition