英语语法分析

If such gametophytes produce fertile gametes, the resulting sporophyte is then tetraploid, and large polyploid series may subsequently be developed.

如果这种配子体能够产生可育的配子，那么形成的孢子体通常是四倍体，这样就可以得到大量的多倍体。

The spore morphology of Pteris is stable, and the difference between species is distinct , but the features of spore and sporophyte are not related.

凤尾蕨属植物孢子的形态稳定， 种间差异明显， 但孢子形态特征与孢子体的形态特征是不相关的。

The gametophyte and infant sporophyte morphological development of S. grevilleoides represented very different features on different culture substrata.

不同基质上中国蕨配子体和幼孢子体生长发育存在差异，尤其是心形原叶体的形态差别明显；