Gloeocapsa sp. 1

Jr, Watson Arantes Gama, Iv, Haywood Dail Laughinghouse & Sant’Anna, Célia Leite, 2014, How diverse are coccoid cyanobacteria? A case study of terrestrial habitats from the Atlantic Rainforest (São Paulo, Brazil), Phytotaxa 178 (2), pp. 61-97 : 82

Gloeocapsa sp. 1 ( Figs. 9L –10B).

Round, elliptical to irregular colonies, 3.7–18.3(107.8) µm diam., 2–4–8 celled, rarely more. Sheath firm, hyaline to slightly navy-blue, conspicuous, lamellate or not, smooth. Cells spherical to hemispherical, elongated after division, 1.2–2.2 µm diam. Cell content homogenous, olive-green. Spores not observed.

Habitat: —Tree bark.

Notes: —The population from the Atlantic Rainforest was similar to Gloeocapsa punctata Nägeli (1849: 51) , due to the morphometry of colonies and cells. However, it differs from G. punctata by habitat (rocks/concrete), cell content color, and that the sheaths are always hyaline. Gloeocapsa atrata Kützing (1843: 174) is another morphologically similar species, though Gloeocapsa sp. 1 differs by having smaller cells and a different habitat, since G. atrata occurs on wet rocks ( Komárek & Anagnostidis 1998).

Studied material: — BRAZIL. São Paulo: Cananéia, State Park of “Ilha do Cardoso” ( Perequê ), 25º 5’ 8” S, 47º 55’ 30” W, 30 November 2010, W.A. Gama-Jr. & C.F.S. Malone (SP 401442) .

Figures

FIGURES 9A. Gloeocapsa compacta. Colony collected from a tree bark.