The Distribution of the Exclusively North American Species of Equisetum

Abstract

the Atlantic coast region to North Carolina. Apparently it does not follow the Gulf Coast but, skipping Alabama and Mississippi, it reappears in Louisiana. Specimens recorded from Alabama represent a different species. Another curious circumstance is that although the fern was collected in Louisiana several times in the earlier part of the past century, for example, Louisiana, 1837, without collector's name, Hale, Alexandria (the first mentioned specimen perhaps sent to Durand by Hale), it was not found there again until last spring by Clair A. Brown, near Baton Rouge. NEW YORK BOTANICAL GARDEN