| The indusia of the areoles next the midrib are also often bent at an angle, and the two portions plainly united. |
| The leaf margins themselves are often reflexed to form false indusia that protect the sori. |
| The sori have indusia, but this is hidden by the margin of the pinnules, which are recurved. |
| The two plants might be difficult to distinguish were it not for the difference in their indusia. |
| Sporangia near or on the margin of the segments, the reflexed portions of which serve as indusia. |
| In systematic botanies the indusia play an important part in determining genera. |
