One before me is composed entirely of some polypodium, on which the seed-spores are all fully developed; in another, bamboo-leaves have been chiefly used; these are all held together in their places by black fibrous roots; occasionally towards the upper margin a few creeper-tendrils are intermingled.
"The Nests and Eggs of Indian Birds, Volume 1"
Allan O. Hume
This outer shell of moss is thickly lined with the dead leaves of a polypodium, and this again is thinly lined with fine grass.
"The Nests and Eggs of Indian Birds, Volume 1"
Allan O. Hume
31. polypodium proliferum, i.
"Himalayan Journals V2."
J. D. Hooker