You have requested access to download the full text of the source (SourceID: 392128):
Morais, K. S.; Costa, L. F.; Bicudo, C. E. D. M.; Ector, L.; Wetzel, C. E. (2020). A new Planothidium species (Achnanthidiaceae, Bacillariophyceae) from Xingu Ria, Amazon River basin, Brazil. Phytotaxa. 477(2): 194-204.