1. The isoetes, also known as quillworts, are a group of aquatic ferns with unique foliage.

译文：水感喙鳞蕨，也被称为水鳞蕨，是一群具有独特叶片的水生蕨类植物。

2. The isoetes plants can be found in freshwater habitats such as ponds and lakes.

译文：水感喙鳞蕨植物可以在池塘和湖泊等淡水环境中找到。