Six are detailed below. One way to identify ferns is by the shape, arrangement and location of their “sori” — small clusters of spore-producing structures found on the undersides of fern leaves, best ...

Ferns have large leaves, sometimes called fronds. The leaf includes a large, expanded part called a blade and a stalk, or stipe. Sporecases occur in dotlike clusters, called sori, on the underside of ...

The roots, stalks, and leaves of the familiar-looking ... glass throughout the field study. These sori can be collected for ...