Scenedesmus: a colony of four algal cells

Here we see two algal colonies, each composed of four light green cells shaped like pea pods. Each individual cell has one green protoplast in the center.

Commentary by Prof. Yuji Tsukii, Hosei University
This organism is called Scenedesmus acutus f.costulatus. It is characterized by having either 4 or 8 spindle-shaped (long, tapered)cells which are arranged in rows.

http://protist.i.hosei.ac.jp/PDB/Im.....

http://protist.i.hosei.ac.jp/PDB/Im.....

Sampling Date : 28 May 2009

Sampling Site : Hirose River B  Google Map