Taxonomic reassessment of Gracilaria cearensis (Rhodophyta, Gracilariales), a poorly defined yet common flattened species based on morphological and molecular analysis including topotype collections
. Phytotaxa. 201, 4 (Mar. 2015), 241–255. DOI:https://doi.org/10.11646/phytotaxa.201.4.1.