The Structure and Physiology of Emergent Foliage
| Note the morphological differences and similarities between the arrow-shaped leaves of Pontederia, Sagittaria, and Peltandra. |
| Here is an image of the unusual emergent Saururus cernuus (Lizard's Tail). |
| A photomicrograph of Acorus leaf X.S. |
| A photomicrograph of Calla leaf X. S. |
| A photomicrograph of Calla stem X.S. |
| A photomicrograph of Sagittaria leaf X. S. |