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Pyrrosia Mirbel
http://www.anbg.gov.au/projects/fern/taxa/pyrrosia.html
Description of genus and key to species in Papuasia.
Pyrrosia polydactylon
http://florawww.eeb.uconn.edu/acc_num/199800079.html
Collection record, Ecology and Evolutionary Biology Conservatory and Gardens, University of Connecticut.