But the most distinguishing feature of all is the tuft of rusty wool which clings to the base of each pinna of the sterile fronds of the Cinnamon Fern. These tufts we do not find in the Interrupted Fern, though both plants come into the world warmly wrapped in wool.
PLATE VI
INTERRUPTED FERN
a Clusters of sporangia
b Showing veining
The Interrupted Fern is a peculiarly graceful plant. Its fertile fronds, standing quite erect below but curving outward above the fruiting pinnæ, are set in a somewhat shallow vase formed by the sterile fronds, which fall away in every direction.
In the fall the fronds turn yellow, and at times are so brilliant that they flood the woods with golden light.
Like the other Osmundas, the Interrupted Fern is easily cultivated.
Interrupted Fern