Abstract: Through the artifical way,this paper detailed makes a record of the whole course of gametophyte development of Blechnacea including three typical species, i.e. Blechnum orientale L.,Woodwardia japonica (L.F)Smith and Brainea insignis (Hook)J.Sm.,with 37 characteristic pictures. It explains the rationality of the classification by Ching who did it in the way of the morpha of the sporogonium, and the results of our experiments accord with his. Besides, we provide a lot of detailed data in the course of gametophyte development of Blechnacea.

Key words: Blechnaceae, gametophyte, development