中华隐囊蕨配子体发育的研究

STUDIES ON THE DEVELOPMENT OFGAMETOPHYTES OF NOTHOLAENA CHINESIS

本文研究了中华隐囊蕨（ＮｏｔｈｏｌａｅｎａｃｈｉｎｅｎｓｉｓＢａｋ）配子体发育的全过程，孢子为近球形四面体，三裂缝，孢子萌发为向心型，丝状体２－１０个细胞长，无明显顶端细胞，丝状体顶端所有细胞同时分裂形成片状体，原叶体发育为槲蕨型，原叶体裸露，心脏形，终生无毛状体，生殖器较大，该配子体表现为较原始的性状。

n this paper,all stages of the development of gametophytes of Notholaena chinesis BakHave been studiedThe spore is tetrahedral,trilete,and subsphaeroidalThe pattern of spore germination is of centripetal typeThe germ filaments 2-10 cells long,without obvious apical cellThe prothallial development are of the Drynaria-typeThe adult prothalli are cordate and nakedThe sex organs are largerIt appears that the gametophytes of Notholaena chinesis possess some primitive characteristics of the fernApogamy is not observed