腰果树的一个顶生圆锥花序上通常着生雄花和两性花。一朵正常的两性花有花萼、花瓣各5片,雄蕊6—10枚(其中一枚大而能育,其余5—9枚小而不育)和子房一个;雄花的子房则已退化。在研究腰果花的生物学时,发现有些花的各部分反常。一朵雄花除有6—10枚小雄蕊外,还有3枚能育的大雄蕊。在某些雄花和两性花中,能育雄蕊变成了一枚只有一 Male flowers and bisexual flowers are usually found on a top panicle of the cashew tree. A normal bisexual flower has calyx, 5 petals, 6-10 stamens (one large and fertile, and the remaining 5-9 small and sterile) and ovary; ovary of male flowers degenerated. In the study of the biology of cashew flowers, some parts of some flowers were found to be abnormal. In addition to a male flower 6-10 small stamens, there are 3 fertile large stamens. In some male flowers and bisexual flowers, fertile stamens have become only one