Pteridophyta Thelypteris balbisii (Spreng.) Ching - Peru J. G. Graham 4687 image_info.php?img=images/collections/jggraham_004687_01_p.jpg&id=83064#image83064 Pteridophyta Thelypteris balbisii (Spreng.) Ching - Peru J. G. Graham 4687 image_info.php?img=images/collections/jggraham_004687_02_p.jpg&id=92652#image92652