Va mycorrhiza may play an important role in the evolution of eusporangiate plants .

va菌根对厚囊蕨类植物的进化可能具有重要的意义。

Eusporangiate ferns of the families ophioglossaceae and marattiaceae .

属于瓶尔小草科和合囊蕨科的厚囊蕨。