Aphanothece cf. densa

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. densa Lemes-da-Silva, L.H.Z. Branco & Necchi-Júnior (2010: 917) ( Figs. 1F–1G ).

Round colonies, 20.1–48.8 µm diam. Sheath firm, hyaline to slightly brownish, conspicuous. Cells densely disposed, ellipsoidal, 3.6–4.6 × 2.6–3.7 µm, 1.3–1.6 times longer than wide. Cell content homogenous to slightly granulated, blue-green.

Habitat: —Tree bark.

Notes: —The studied population had a corticolous habitat. The colony, cell shape, and content color resembled Aphanothece densa . This species was recently described based on a population found on the tree bark of a semideciduous forest, quite distinct from the Atlantic Rainforest. Besides, A. densa has larger cell dimensions (4.0–7.0 × 4.0–5.0 μm) than the presently described population ( Lemes-da-Silva et al. 2010).

Studied material: — BRAZIL. São Paulo: Peruíbe, Ecological Station “Juréia-Itatins”, 24° 23.842’ S, 47° 7.252’ W, 17 August 2011, W.A. Gama-Jr., G.S. Hentschke, C.F.S. Malone & C.L. Sant’Anna (SP 427328) .

Figures

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