Plectolyngbya sp.2

Da Anunciação, Raylane R., Paulino, Jonatas M., Moura, Ariadne N., Iv, H. Dail Laughinghouse & Gama, Watson A., 2024, Morphometric Characterization And The First Taxonomic Synthesis Of Terrestrial Cyanobacteria From The Atlantic Forest In Northeastern Brazil, Phytotaxa 646 (1), pp. 1-31 : 7

Plectolyngbya sp.2 ( Fig.7C–D ).

Filaments entangled. Sheath firm, thin, smooth, non-lamellated, open at ends, hyaline, observed only when without cells. Trichomes cylindrical, erect or slightly coiled, slightly constricted or not, false germinate or single branches. Cell isodiametric, subquadratical or short, 1.07–2.76 µm wide, (0.78) 0.98–2.63 µm long, ratio l/w = 0.84. Apical cells rounded, without calyptra or thickening. Cell content homogeneous blue-green, with distinct chromatoplasma. Necridia present.

Habita: —Tree bark.

Notes: —This morphotype resembles Plectolyngbya sp.1 but differs by habitat and ratio l/w.

Studied material: — PEUFR 56645

Family Merismopediaceae Elenkin (1933: 19) .

Figures

FIGURE 7. A–B. Plectolyngbya sp.1; C–D. Plectolyngbya sp.2; E. Aphanocapsa sp.; F–G. Tricocholeus acutissimus; H–J. Tricocholeus sp.; K–L. Schizothriz telephoroides; M. Aphanothece densa; N–O. Aphanothece pallida; P. Aphanothece sp.; Q. Gloeothece samoensis; R. Asterocapsa divina. Scale bar: 50 μm (N); 5 μm (Q; R); 10 μm (to the others).