Chroococcidiopsis sp.1

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 : 14

Chroococcidiopsis sp.1 ( Fig. 9Q–T ; 10A–B ).

Colonies round to elongated, 6.56–17.52 µm wide. Sheath firm, thin, smooth, non-lamellated, hyaline to brown. Cells rounded to irregular, 1.87–5.51 µm wide. Without individual envelopes. Cell content homogeneous grayish-purple.

Habitat:— Dry tree bark associated to Aphanothece densa and Chlorogloea sp.1 ; tree bark inside the forest associate to Gloeocapsopsis sp.1 and Pycnacronema rubrum .

Notes:— The morphotype also has a life cycle similar to Chroococidiopsis kashayi ( Friedmann, 1961) , but this morphotype is unique by its sheath color, cell dimensions and corticolous habitat.

Studied material:— PEUFR 55795, PEUFR 55801

Figures

FIGURE 9. A–E. Gloeocapsopsis pleurocapsoides—different stages of the life cycle. F–G. Gloeocapsopsis sp.—G. Nanocyte; H. Chlorogloea sp.1; I. Chlorogloea sp.2; J. Chlorogloea sp.3; K–P.Chroococcidiopsis cf.kashayi—different stages; Q–T.Chroococcidiopsis sp.1—different stages of the life cycle. Scale bar: 5 μm (K; R; S; T); 10 μm (to the others).

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).