155,837 species and infraspecific names are in the database, 21,968 images, 60,232 bibliographic items, 439,367 distributional records.

Species References

Polysiphonia violacea (Roth) Sprengel

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

Koch, C. (1986). Attempted hybridization between Polysiphonia fibrillosa and P. violacea (Bangiophyceae) from Denmark; with culture studies primarily on P. fibrillosa. Nordic Journal of Botany 6: 123-128.
Yamanouchi, S. (1906). The life history of Polysiphonia violacea. Botanical Gazette 41: 425-433.

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