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1
A study of certain Mexican and Guatemalan species of Polypodium /
Published 1903Search for the full-text version of this title in HathiTrust
Government Document Book -
2
A new species of fern of genus Polypodium from Jamaica /
Published 1905Connect to online resource (select volume)
Government Document Book -
3
Study of certain Mexican and Guatemalan species of Polypodium
Published 1903Full Text (via ProQuest)
Government Document Electronic eBook -
4
Polypody The ancient doctrine of the virtues of that herb, tried and confirmed. By John Hill, M.D.
Published 1768Online Access
Electronic eBook