单词pollen sac
un.: 花粉囊网络: 花粉囊或药囊
花粉囊
stamens 5, filaments very short, anthers ovoid, with 2 pollen sac opening each by 2 vertical valves, connectives exserted;
雄蕊5，花丝极短，花药卵形，具2个各2瓣裂的花粉囊，药隔突出；