image_list image_listE

Gamophyceae: Zygnematales: Desmidiaceae or Closteriaceae

 Closterium angustatum
Kützing var. angustatum f. angustatum

Closterium angustatum Genus: Cell body crescent in shape (long, curved, tapered at both ends); cross section rounded; cell wall smooth or with longitudinal lines, bands on the cell wall in some species; chloroplast laminae ridged and radially arranged, which makes cross section star-shaped; pyrenoids aligned or scattered (Illustrations of The Japanese Fresh-water Algae, 1977).
Species:

Closterium angustatum Kützing var. angustatum f. angustatum, cell body about 600 μm long (?), 23 μm wide, L/W=26.1, x 640, Ko-numa (pond/marsh), Tsukiyono town, Gunma Pref., Japan, April 15, 2007 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Closterium angustatum Closterium angustatum Closterium angustatum
Closterium angustatum Closterium angustatum Closterium angustatum Closterium angustatum

Images of collecting locality: Ko-numa (pond/marsh), Tsukiyono town, Gunma Pref., Japan, April 15, 2007 by Y. Tsukii

Please click on images for viewing enlarged.
Copyright Protist Information Server