159,695 species and infraspecific names are in the database, 22,560 images, 62,387 bibliographic items, 465,549 distributional records.

Species References

Closterium abruptum var. [abruptum] f. nilssonii (Borge) A.J.Brook & D.B.Williamson

References
(Please note: only references with the binomials in the title are included. The information is from the Literature database.)

Brook, A.J., Williamson, D.B. & Shoesmith, E. (1993). On the status of Closterium abruptum West and C. nilssonii Borge (Desmidiaceae: Zygnemaphyceae). Nova Hedwigia 57: 255-268.

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