Sori are borne on either side of the midvein of fertile pinnules and protected by firm, dark indusia.
They are covered by firm, dark indusia. Sori are borne on either side of the midvein of fertile pinnules.
Sori are borne on either side of the midvein of fertile pinnules. They are covered by firm, dark indusia.
Sori are borne on either side of the midvein of fertile pinnules. They are covered by firm, dark indusia.