Spirotaenia condensata Brébisson 1848

Most likely ID: n.a.

Basionym: n.a.

Add’l Synonyms: Spirotaenia condensata f. minor West & G.S.West 1898
                               Entospira condensata (Brébisson) Kuntze 1898

Please note: It has been shown that the genus Spirotaenia Brébisson, 1848 is polyphyletic. The publications cited below show that currently (February 2026), Sp. condensata, Sp. minuta, Sp. obscura (currently listed in genus Tortitaenia Brook, 1998), and Sp. alpina have been molecularly confirmed as belonging to the Mesostigmatophyceae.

Cheng, S., Xian, W., Fu, Y., Marin, B., Keller, J., Wu, T., … & Melkonian, M. (2019). Genomes of subaerial Zygnematophyceae provide insights into land plant evolution. Cell, 179(5), 1057-1067.

Gontcharov, A. A., & Melkonian, M. (2004). Unusual position of the genus Spirotaenia (Zygnematophyceae) among streptophytes revealed by SSU rDNA and rbc L sequence comparisons. Phycologia, 43(1), 105-113.

Bierenbroodspot, M. J., Pröschold, T., Fürst-Jansen, J. M., de Vries, S., Irisarri, I., Darienko, T., & de Vries, J. (2024). Phylogeny and evolution of streptophyte algae. Annals of Botany, 134(3), 385-400.