Paesia - Species list for "Manual de Flora de Costa Rica" with links to specimen data. www.mobot.org/manual.plantas/052667/G052839.html
Paesia - Key to species in Papuasia. www.anbg.gov.au/projects/fern/taxa/paesia.html
Paesia anfractuosa - Specimen list from Instituto Nacional de Biodiversidad, Costa Rica. www.inbio.ac.cr/bims/k03/p11/c043/o0226/f01486/g007555/s022408.htm
