Rhoicosphenia
-
Category
-
ClassBacillariophyceae
-
OrderCymbellales
-
FamilyRhoicospheniaceae
-
Type SpeciesRhoicosphenia abbreviata (Agardh) Lange-Bertalot
-
ContributorSarah Spaulding, Mark Edlund - Dec 2008
-
ReviewerSam Rushforth - Jun 2010
Displaying 3 of 3 species
Sorted from smallest to largest by maximum length
1 Additional Rhoicosphenia species
Click species name to copy BioData reference to the clipboard
Biodata Reference
Rhoicosphenia lowei
Citations & Links
Citations
-
Publication Link: 10.1080/0269249X.2014.961554
Links
-
Index Nominum Algarum
-
CAS
Cite This Page
Spaulding, S., Edlund, M. (2008). Rhoicosphenia. In Diatoms of North America. Retrieved May 01, 2026, from https://diatoms.org/genera/rhoicosphenia?x-craft-preview=409442409a997390693ff24c7010fd6f1c96fb56f8f091fa016a63de9a54aaccecpiqubknd
Asymmetric Biraphid
Rhoicosphenia
- One valve with complete raphe
- One valve with small raphe branch (rudimentary raphe)
- Pseudosepta at both poles
- Frustule curved in girdle view
Frustules of Rhoicosphenia are clavate in valve view and heterovalvar. In girdle view, valves are flexed, and curved. As a result of the asymmetry to the transverse axis, the valve face is curved. One valve has a complete raphe with two distinct raphe branches. The other valve has a very small raphe branch on the footpole. Pseudosepta...