Polystichum hildae, a holly fern discovered in Columbia, is named after a 95-year-old longtime volunteer at UVM. Here's why.

Allozymic comparisons of 69 populations of the six North American diploid species of Polystichum resulted in new hypotheses of interspecific relationships in this poorly understood species complex.

This is a preview. Log in through your library . Abstract A taxonomic history for the fern genus Polystichum in Latin America and an analysis of the important characters at the species level in the ...

What: Dyce’s holly fern forms a vase-shaped bouquet of dark green, shiny fronds. Perfect for a bold, yet delicate statement in the small garden, or plant en masse in a woodland garden for a striking ...

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This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...