dicks on i a

[Named after Mr. James Dick son, an eminent cryptogamic botanist.] Bot.: A genus of Polypodiacese, the type of the section Dicks on i ere. The species are mostly arbor escent ferns from the Southern Hemisphere. The tree-fern of St. Helena is Dicks on i a arbores cens. It has more than once been brought to this country, but has never thrived well. Other species of the genus have also been introduced. Of these D. antarctica is very beautiful, and is often seen in greenhouses.