161,464 species and infraspecific names are in the database, 22,723 images, 62,896 bibliographic items, 473,550 distributional records.

Species References

Polysiphonia spinifera Kützing

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

Yoneshigue, Y. & Villaça, R.C. (1986). Flora marinha da regiáo de Cabo Frio (Estado do Rio de Janeiro, Brasil). 6. Pterosiphonia spinifera, Polysiphonia eastwoodae, P. flacidissima, P. sphaerocarpa e Streblocladia corymbifera (Rhodomelaceae, Rhodophyta). Novas occorências para a Costa Brasileira. Rickia 13: 97-111.

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