How diverse are coccoid cyanobacteria? A case study of terrestrial habitats from the Atlantic Rainforest (São Paulo, Brazil) Author Jr, Watson Arantes Gama Institute of Botany, Núcleo de Pesquisa em Ficologia, C. P. 3005, 1031 - 970 São Paulo, SP, Brazil & E-mail: watsonarantes @ gmail. com (corresponding author) Author Iv, Haywood Dail Laughinghouse Department of Biological Sciences, Smith College, Northampton, MA 01063, USA & Department of Botany, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013, USA Author Sant’Anna, Célia Leite Institute of Botany, Núcleo de Pesquisa em Ficologia, C. P. 3005, 1031 - 970 São Paulo, SP, Brazil text Phytotaxa 2014 2014-09-12 178 2 61 97 http://dx.doi.org/10.11646/phytotaxa.178.2.1 journal article 10.11646/phytotaxa.178.2.1 1179-3163 5145178 Gloeothece rhodochlamys Skuja (1949: 18) ( Figs. 2D–2G ). Round to elliptical, irregular colonies, 16.0–70.0 µm diam. Sheath firm, hyaline (rare) to orange reddish, conspicuous, concentric lamellate, finely granulated. Cells oblong to ellipsoid, 4.5–6.0(6.7) × (1.8)2.6–3.6(4.8) µm, 1.3–1.6 times longer than wide. Cell content homogeneous to finely granulated, olive green. Habitat: —Rocky coast and dry rocks. Studied material: — BRAZIL . São Paulo : São Luís do Paraitinga , State Park of “Serra do Mar”, Núcleo Santa Virgínia , 23º 20’ 16” S , 45º 9’ 0” W , 22 February 2010 , W.A. Gama-Jr. (SP 401417); 23º 20’ 35” S , 45º 8’ 17” W , 24 February 2010 , W.A. Gama-Jr. (SP 401428) .