basidia

1.Hymenium (pl. hymenia) A layer of the fruiting body of certain ascomycete and basidiomycete fungi in which the asci or basidia are borne.

真根据其“果实”（实体译者注）结构特征分为三大门类：接合类、囊类和类。

2.In most basidiomycotes the basidia are borne on a special fertile layer, the hymenium, on the surface of a fruiting body, the BASIDIOMA.

大中，是由一个专门可育层，即实体表面实层形成。