A = Living cells (BF); B&C = Living cells (DIC) ; D = Two chloroplasts with pyrenoids (DIC). Arrowhead=external process, arrow=external depression
Life-form: Solitary or united in chains
Size: Diameter = 9 - 22(49) µm, Pervalvar axis 27-110 µm
Resting spore:
Note:
Distinctive features: Flat valve with thin process and cell with 2-8 large chloroplasts each with a large pyrenoid
Similar species:
Distribution: Widely
Literature:
Cleve, P. 1900. The plankton of the North Sea, the English Channel,
and the Skagerak in 1898. Kongl. Svensk. Vet.-Akad. Handl. 32(8):
1-53.
Drebes, G. 1974. Marines Phytoplankton, Eine Auswahl der Helgoländer Planktonalgen (Diatomeen, Peridineen). Georg Thieme Verlag, Stuttgart. 186 pp.
Hasle, G. R. & Syvertsen, E. E. 1996. Marine diatoms. In: Tomas, C. R. (ed.) Identifying marine diatoms and dinoflagellates. Academic Press, Inc., San Diego, p. 5-385.
Sundström, B. G. 1986. The marine genus Rhizosolenia. Doctoral Dissertation, Lund University, Lund, Sweden. 117 pp.