TY  - BOOK
AU  - Maxon,William R.
TI  - A study of certain Mexican and Guatemalan species of Polypodium
T2  - Smithsonian institution.  United States national museum.  Contributions from the United States national herbarium
AV  - QK1 .U5 v. 8, pt. 3
PY  - 1903///
CY  - Washington
PB  - Govt. print. off.
KW  - Polypodium
ER  -