A Taxonomic and Biogeographic Reappraisal of the Genus Dicksonia (Dicksoniaceae) in the Neotropics

This dataset contains the digitized treatments in Plazi based on the original journal article Noben, Sarah, Kessler, Michael, Weigand, Anna, Tejedor, Adrian, Rodr´, Wilson D., Gallego, Luis Fernando Giraldo, Lehnert, Marcus (2018): A Taxonomic and Biogeographic Reappraisal of the Genus Dicksonia (Dicksoniaceae) in the Neotropics. Systematic Botany (Basel, Switzerland) 43 (4): 839-857, DOI: 10.1600/036364418X697634, URL: doi.org/10.1600/036364418x697634 Abstract —We evaluate morphological characters of South American Dicksonia (Dicksoniaceae) gathered from field observations and herbarium specimens.

We here adopt the taxonomic concept of earlier authors and separate D. sellowiana of southeastern Brazil from D. navarrensis (= D. gigantea auct.) and D. karsteniana, which occur mainly in Mesoamerica and in the Andes, respectively.The latter species is especially variable in plant size and persistence of the hairy indument, which can be correlated with local ecological conditions. For plants with small, hairy fronds from shrubby páramo vegetation, we here propose to reinstate a varietal name, D. karsteniana var. arachnoidea, and for glabrescent plants regularly found at lower elevations in closed forest we suggest D. karsteniana var. spruceana.