Silva Center for Phycological Documentation: Index Nominum Algarum


The INA is a card file and online reporting system maintained at the Silva Center for Phycological Documentation of the University Herbarium, University of California, Berkeley. It contains nearly 200,000 names of algae (in the broad sense). The BPU is a card file containing bibliographic references pertaining to algal taxonomy.
A working list of algal type specimens at UC is available here

Tabular display

Results from INA database

  1. Polysiphonia nigrescens (Hudson) Greville
  2. Polysiphonia nigrescens (Hudson) Wallroth image
  3. Polysiphonia nigrescens (W. Hudson) R.K. Greville image
  4. Polysiphonia nigrescens f. affinis (Moore) J. Agardh image
  5. Polysiphonia nigrescens f. fasciculata v. Suhr image
  6. Polysiphonia nigrescens f. fastigiata Suringar image
  7. Polysiphonia nigrescens f. fastigiata v. Suhr image
  8. Polysiphonia nigrescens f. flaccida (Areschoug) Rosenvinge image
  9. Polysiphonia nigrescens f. fucoides J.G. Agardh image
  10. Polysiphonia nigrescens f. pectinata (C. Agardh) J. Agardh image
  11. Polysiphonia nigrescens f. pectinata v. Suhr image
  12. Polysiphonia nigrescens f. pinnata Suringar image
  13. Polysiphonia nigrescens f. protensa J. Agardh image
  14. Polysiphonia nigrescens f. reducta Svedelius image
  15. Polysiphonia nigrescens f. senticosa (Suhr) J. Agardh image
  16. Polysiphonia nigrescens var. affinis (Moore) Harvey image
  17. Polysiphonia nigrescens var. congesta Lenormand image
  18. Polysiphonia nigrescens var. congesta Lenormand image
  19. Polysiphonia nigrescens var. congesta Lenormand image
  20. Polysiphonia nigrescens var. delicatissima H. Van Heurck image
  21. Polysiphonia nigrescens var. disticha Harvey image
  22. Polysiphonia nigrescens var. durkeei Harvey image
  23. Polysiphonia nigrescens var. flaccida Areschoug image
  24. Polysiphonia nigrescens var. fucoides (W. Hudson) W.H. Harvey image
  25. Polysiphonia nigrescens var. gracilis Kjellman image
  26. Polysiphonia nigrescens var. gracillima Harvey image
  27. Polysiphonia nigrescens var. plumosa Harvey image
  28. Polysiphonia nigrescens var. secundata Suhr ex Rabenhorst image
  29. Polysiphonia nigrescens var. tenuis Harvey image