psilophyton
psi·lop·hy·ton
noun
1.
any plant or fossil of the genus Psilophyton
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WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
psi·lop·hy·ton
any plant or fossil of the genus Psilophyton
WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.