Aphanothece cf. castagnei (Brébisson) Rabenhorst (1865: 64)

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 : 63

Aphanothece cf. castagnei (Brébisson) Rabenhorst (1865: 64) ( Figs. 1C–1E ).

Basionym: Oncobyrsa castagnei Brébisson in Kützing (1845: 9).

Round to elongated, irregular colonies, 17.8–386.1 µm diam. Sheath gelatinous, hyaline to brownish, inconspicuous to conspicuous. Cells sparsely disposed, oblong to ellipsoidal, 3.8–5.9 × 2.6–3.8 µm, 1.4–2.0 times longer than wide. Cell content slightly granulated, greyish green.

Habitat: —Wet rocks.

Notes: —Morphologically, the studied population is very similar to Aphanothece castagnei . However, ecologically they are distinct and, according to Rabenhorst (1865), A. castagnei was found growing among submersed mosses, not on wet rocks as the present material.

Studied material: — BRAZIL. São Paulo: Peruíbe, Ecological Station “Juréia-Itatins”, 24° 24.146’ S, 47° 3.648’ W, 15 August 2011, W.A. Gama-Jr., G.S. Hentschke, C.F.S. Malone & C.L. Sant’Anna (SP 427310); 24° 23.708’ S, 47° 7.324’ W, 17 August 2011, W.A. Gama-Jr., G.S. Hentschke, C.F.S. Malone & C.L. Sant’Anna (SP 427330) .

Figures

FIGURES 1A–1B. Aphanothece saxicola. General colony habit with cells in an individual envelope (arrow).