Question

polytrichum commune is an aquatic bryophyte or not​

Answer 1

$\fbox\pink{A}\fbox\blue{n}\fbox\purple{s}\fbox\green{w}\fbox\red{e}\fbox\orange{r}$Mosses in the genus Polytrichum are endohydric, meaning water must be conducted from the base of the plant. ... It consists of cells with a relatively wide diameter called hydroids, which conduct water. This tissue is analogous to xylem in higher plants.