Chamaesiphon stratosus

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 : 89

Chamaesiphon stratosus Sant’Anna, Gama-Jr., Azevedo & Komárek (2011c: 26) ( Figs. 14A–14B ).

Colonies shrub-like, fan-shaped. Cells club-shaped, rounded at both ends, organized in one layer or at most two, 9.3– 20.6(26.8) × 2.3–4(6.5) μm. Sheath U-shaped, distinct, colorless to intensely yellowish-green or brownish, slightly lamellate and frayed when old. Exocytes 1.5–2.6 μm diam., singularly liberated or forming variable number of rows and layers. Cell content brownish or olive-green, slightly granular.

Habitat: —Rocks near a river splash zone.

Studied material: — BRAZIL. São Paulo: Campos do Jordão, Horto Florestal , 22° 41’ 26.3” S, 45° 28’ 51.4” W, 8 November 2002, C.L. Sant’Anna, M. T.P. Azevedo & J. Komárek (SP 400963) .

Figures

FIGURES 14A–14B. Chamaesiphon stratosus. Cell arrangement and initial stage after exospore germination (arrow). FIGURES 14C–14D. Hyella cf. caespitosa var. arbuscula. General thallus aspect and detail of baeocytes in mothers’ sheath (arrow).