Porphyrosiphon ceylanicus (Wille) Anagnostidis et Komárek (1988: 409)

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 : 16

Porphyrosiphon ceylanicus (Wille) Anagnostidis et Komárek (1988: 409) ( Fig. 10H–I ).

Basonym: Lyngbya ceylanica Wille (1914: 161) .

Filaments solitary, 14.85–22.45 µm wide. Sheath firm, 1.33–6.21 µm wide, smooth, 1–2 lamellae, hyaline to intense red. Trichome cylindrical, unbranched, not constricted. Cells isodiametric to subquadrate, 9.01–12.77 µm wide, 5.01–10.75 µm long, ratio l/w = 0.73. Apical cell conical to rounded-conical, without calyptra or thickening. Cell content granulated, blue-green. With necridia.

Habitat:— Soil; associated with Schizothrix telephoroides .

Studied material:— PEUFR 55780

Figures

FIGURE 10. A–B. Chroococcidiopsis sp.1; C–D. Chroococcidiopsis sp.2; E–F. Pycnacronema rubrum; G. Microcoleus vaginatus; H–I. Porphyrosiphon ceylanicus; J. Porphyrosiphon kaernbachii; K. Lyngbya ocreata; L–N. Dapisostemon sp.; O–R. Komarekiella sp.— different stages of the life cycle. Scale bar: 50 μm (L); 10 μm (to the others).