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Anemone patens, var. wolfgangian close up
Anemone patens, var. wolfgangian close up
Aquilegia canadensis close up
Aquilegia canadensis close up
Asplenium pycnocarpum (Diplazium pynocarpon)
Athyrium thelypteroides (Deparia acrostichoides)
Athyrium thelypteroides (Deparia acrostichoides), near view
Botrychium simplex
Botrychium virginianum
Botrychium virginianum
Coptis trifolia
Coptis trifolia
Coptis trifolia
Coptis trifolia
Corylus americana fruit
Crataegus macracantha leaf and fruit
Equisetum arvense, cones
Equisetum arvense diagram, wall chart of sporangia and spores
Equisetum arvense, wall chart
Equisetum arvense, wall chart showing cross section of cone
Equisetum kansanum (Equisetum laevigatum)
Equisetum kansanum (Equisetum laevigatum)
Equisetum palustre
Equisetum pratense
Equistetum limosum (Equisetum fluviatile)
Erythronium americanum
Euphorbia marginata
Habenaria hookeri (Platanthera hookeri)
Isoetes
Isoetes echinospora, Von Braunii
Listera cordata
Lycopodium annotinum
Lycopodium clavatum
Lycopodium complanatum
Lycopodium complanatum, near view
Lycopodium obscurum
Lycopodium obscurum
Marsilea quadrifolia (Marsilea polycarpa)
Marsilea quadrifolia (Marsilea polycarpa), nearer view
Ophioglossum vulgatum (Ophioglossum reticulatum)
Osmunda regalis
Petrified Wood, log section
Rosa acicularis
Selaginella rupestris (Selaginella sellowii)