羊齿类

Ferns grow in shady and moist places.

羊齿类植在阴暗潮湿的地方。

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

心皮和能产孢子的维管植（羊齿类）还有具胚珠的子植的大孢子叶是同源的。