2 mm long), fugacious and often apparently absent, usually evident as a tuft of whitish hairs in the center of the sorus 2.
2 mm wide, circular, fugacious and usually seemingly absent, eglandular, pubescent by whitsh acicular hairs ca.
2 mm long, 2-4-celled, spreading to ascending; indusia minute, fugacious, apparently consisting of a cluster of reddish proscales, ca.
3 mm long, 3- or 4-celled, ascending; indusia minute, fugacious, apparently consisting of a cluster of reddish proscales, ca.
Laminae adaxially densely and evenly pubescent between veins; rachis scales appressed, inconspicuous; minute fugacious indusia present 2.
Laminae adaxially glabrous between veins or sparsely pubescent with a few hairs near the margins; rachis scales spreading, conspicuous; minute fugacious indusia absent 17.
3 mm, fugacious and usually seemingly absent, glandular and pubescent, hairs sometimes appearing mixed among the sporangia.
Megalastrum adenopteris is characterized by dense even uniform, erect hairs on the abaxial surfaces of the laminae, glands on both surfaces of the laminae, pinna rachises, and costules, and minute fugacious indusia (Fig.