Spirotaenia closteridia (Ķtzing) Rabenhorst (1868: 146)

Ramos, Geraldo José Peixoto, Souza, Bruna Fadul De, Ribeiro, Sylvia Maria Moreira Susini & Moura, Carlos Wallace Do Nascimento, 2023, New insights into the diversity and distribution of the genus Spirotaenia (Mesotaeniaceae, Streptophyta) in the Neotropics, including the description of S. tetrahelica sp. nov., Phytotaxa 613 (1), pp. 29-38 : 33

Spirotaenia closteridia (Ķtzing) Rabenhorst (1868: 146) ( Fig. 16 )

Basionym: Palmogloea closteridia Ķtzing (1849: 228)

Cells 6–8 times longer than broad, with a slight curvature, narrowed towards the rounded poles, chloroplast ribbon-shaped, parietal, that makes 1.5–3.5 turns. Cell dimensions: length 15–33 μm, breadth 2.5–4 μm.

Distribution: Europe: Austria, France, Germany, Russian Federation, Ukraine ( Guiry & Guiry 2023, Kossinskaja 1952); North America: USA ( Prescott et al. 1972). South America: Brazil ( Ramos et al. 2017).

Ecology: plankton, metaphyton; spring water, bromeliad phytotelm.

Note: The slightly curvature pattern of the cell is the main morphological feature of this species.

Figures

FIGURES 11–18. Spirotaenia species reported for the Neotropics: 11. Spirotaenia tetrahelica sp nov; 12. S. beijerinckii; 13. S. erythrocephala; 14. S. condensata; 15. S. endospira; 16. S. closteridia; 17. S. minuta; 18. S. filiformis.