Ginkgo trees are a good example of this type of leaf. The ferns that most people grow in their homes or in their gardens is in the order Pteridales. These ferns are characterized by a rhizome with adventitious roots and leaf branches off of the nodes. Fertilization Fibers Fibers are one the two types of sclerenchyma . Sclerids are the other cell type.
Fibers are very long and narrow with a very small lumen .
They are dead when fully mature and functioning. The cell walls contain lignin and therefore take up the red stain. Their function in the plant is strengthening. Fig Figworts Filament Filicales Fire-adapted Firs Firs are in the genus Abies, the family Pinaceae and the Division Coniferophyta. They are characterized by needle-like leaves , and erect cones whose cone scales fall separately, leaving the central axis of the cone on the tree.