羊齿类

Ferns grow in shady and moist places.

类植物生长在阴暗潮湿的地方。

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

心皮和能产生孢子的维管植物（类）还有具胚珠的子植物的大孢子叶是同源的。