76 
PLATE III. 
Flu. 30. Dipliiziuiu jjalliduui. Epidermis of nether surface. X 175. 
31. BlecUnum egregiuiu. Same. X 320. 
32. Polypodnim affine. Surface view; upper epidermis dotted, hypodermis in 
solid lines. X 320. • - , 
33. P. caudiforme. Upper epidermis in solid lines, hypodermis dotted. X 75. 
34. P. sinuosuni. Upper epidermis in solid lines, hypodermis dotted. X 175. 
35. Lecanopteris pnmila. Upper epidermis dotted, hypodermis in solid lines. 
X 175. 
30. Dryostaehyuni pilosum. Upper epidermis in solid lines, liypodermis 
dotted. X 320. 
37. Thayeria Cornucopia. Upper epidermis dotted, hypodermis in solid lines. 
X75. 
PLATE IV. 
Genealogical tree of Poly pod iaeeae. 
i 
