Morphometric Characterization And The First Taxonomic Synthesis Of Terrestrial Cyanobacteria From The Atlantic Forest In Northeastern Brazil Author Da Anunciação, Raylane R. Graduate Program in Biodiversity (PPGBio), Federal Rural University of Pernambuco, Rua D. Manoel de Medeiros, S / N, Dois Irmãos, CEP 52171 - 030, Recife, PE, Brazil Author Paulino, Jonatas M. Graduate Program in Biodiversity (PPGBio), Federal Rural University of Pernambuco, Rua D. Manoel de Medeiros, S / N, Dois Irmãos, CEP 52171 - 030, Recife, PE, Brazil Author Moura, Ariadne N. Graduate Program in Biodiversity (PPGBio), Federal Rural University of Pernambuco, Rua D. Manoel de Medeiros, S / N, Dois Irmãos, CEP 52171 - 030, Recife, PE, Brazil Author Laughinghouse IV, H. Dail Agronomy Department, Fort Lauderdale Research and Education Center, University of Florida - IFAS, 3205 College Avenue, Davie, FL 33314, USA Author Gama, Watson A. Graduate Program in Biodiversity (PPGBio), Federal Rural University of Pernambuco, Rua D. Manoel de Medeiros, S / N, Dois Irmãos, CEP 52171 - 030, Recife, PE, Brazil watson.arantes@ufrpe.br text Phytotaxa 2024 2024-04-30 646 1 1 31 http://dx.doi.org/10.11646/phytotaxa.646.1.1 journal article 305607 10.11646/phytotaxa.646.1.1 76333385-44ec-421a-8f34-09919b553d44 1179-3163 13215154 Plectolyngbya sp.1 ( Fig. 7A–B ). Filaments entangled. Sheath firm thin observed only when without cells or 0.71–1.64 µm wide, hyaline. Trichomes cylindrical, erect or slightly coiled after branches, constricted or not, false geminate or single branches.Cells isodiametric to subquadratical, 1.46–3.13 µm wide, 1.45–3.66 µm long, ratio l/w = 0.98. Apical cells rounded, without calyptra or thickening. Cell content homogenous to granulated, with 1–2 granules per cell near cell wall, blue-green, with distinct chromatoplasma. Necridia present. Habitat: —Clay Brick. Notes: —This morphotype resembles Plectolyngbya hodgsonii Taton, Wilmotte, Marda, Elster & Komárek , but differs from P. hodgsonii by habitat, being describe for Antartic. Studied material: — PEUFR56642