Coelosphaeriopsis sp.

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 : 67-68

Coelosphaeriopsis sp. ( Figs. 3H – 4A ).

Hollow, round to elliptical colonies, 12.0–106.3 µm diam. Sheath firm, hyaline, conspicuous. Cells grouped 2–4, elliptical to slightly polygonal, 2.3–3.8 µm diam., surrounded by individual hyaline sheaths. Cell content homogenous to granulated, blue-green to brown.

Habitat: —On rock covered by a water slide near a waterfall.

Notes: — Coelosphaeriopsis Lemmermann (1899: 352) is a rare and understudied genus, with only two species: C. halophila Lemmermann (1899: 352) , described from saline environments, and C. chlamydocystis ( Skuja 1964: 39) Komárek & Anagnostidis (1995: 17) , found in a Swedish lake; both with habitats very different from the Atlantic Rainforest population.

Studied material: — BRAZIL. São Paulo: São Luís do Paraitinga, State Park of “Serra do Mar” ( Santa Virgínia ), 23º 20’ 16” S, 45º 9’ 1” W, 22 February 2010, W.A. Gama-Jr. (SP 401419) .

FIGURES 3D–3E . Aphanocapsa cf. intertexta . Detail of cells showing visible chromatoplasm (arrows).

FIGURES 3F–3G . Aphanocapsa sp. General aspect of a colony and detail of cells in division, with two sub-spherical semi-cells (arrow). FIGURES 3H . Coelosphaeriopsis sp.

Figures

FIGURES 3A. Lemmermanniella terrestris. General colony habit, showing cells disposed in one layer only and detail of cell morphology. FIGURES 3B–3C. Aphanocapsa intertexta. General aspect of a colony without conspicuous mucilage and a conspicuous mucilage colony forming subcolonies (arrows).

FIGURES 4A. Coelosphaeriopsis sp. General aspect of a colony and detail of cells in individual envelopes (arrow).