Myriopteris fimbriata

Myriopteris fimbriata is a small to medium-sized lip fern of eastern Mexico, Central America, and the Greater Antilles. It is very similar to M. microphylla, but can be distinguished by the long fringes on the leaf margins of fertile fronds, where they curl under to form false indusia. The leaf is twice-divided into lanceolate segments bearing whitish hairs on both surfaces. One of the cheilanthoid lip ferns, it was classified in the genus Cheilanthes as Cheilanthes microphylla var. fimbriata until 2013, when the genus Myriopteris was again recognized as separate from Cheilanthes. It typically grows on limestone....read more on Wikipedia.