羊齿类

Ferns grow in shady and moist places.

羊齿类植物生长在湿的地方。

The carpel is homologous with the megasporophylls of certain spore-bearing vascular plants (pteridophytes) and the ovuliferous scales of gymnosperms.

心皮和能产生孢子的维管植物（羊齿类）还有具胚珠的子植物的大孢子叶是同的。