Tolypothrix rechingeri (Wille) Geitler (1925: 259)

Da Anunciação, Raylane R., Paulino, Jonatas M., Moura, Ariadne N., Laughinghouse IV, H. Dail & 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 : 27

Tolypothrix rechingeri (Wille) Geitler (1925: 259) ( Fig. 16J–M ).

Basonym: Hassallia rechingeri Wille (1913: 145) .

Filaments entangled, 8.52–15.13 μm wide. Sheath firm, 0.89–2.96 μm wide, 2–3 lamellae, hyaline to yellowish-brown. Trichomes cylindrical, heteropolar, with tolypothricoid branches, slightly constricted. Apical cell rounded. Cells sub-quadratic to short, 7.79–12.82 μm wide, 3.94–8.51 μm long, ratio l/w = 0.55. Cell content granulated, blue-green. Heterocyte ellipsoid or semi-spherical, in basal or apical position, 6.21–12.8 μm wide, 2.33–10.29 μm long. Hormogonia 4–8 cells, constricted, with basal heterocyte or not.

Habitat: —Tree bark inside the forest; associated with Aphanothece sp.

Studied material: — PEUFR 55814

Figures

FIGURE 16. A–E. Kryptousia sp.2; F–I. Streptostemon sp.; J–M. Tolypothrix rechingeri. Scale bar: 50 μm (A; G); 10 μm (to the others).