image_list image_listE

Gamophyceae: Zygnematales: Desmidiaceae or Closteriaceae

Closterium lanceolatum
Kützing

Closterium 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: Cell body slightly curved, inner-side nearly straight; L/W= 6-8; cell wall smooth, transparent; chloroplasts with 5-10 laminae; 6-8 pyrenoids in each semi-cell; 200- (240-400) -540 μm long, 28- (30-52) -79 μm wide (Illustrations of The Japanese Fresh-water Algae, 1977).


Closterium lanceolatum Kützing ?, cell body 160 μm long, 40 μm wide, L/W=4, x 640, Hasukawara-shinmachi, Tsuchiura city, Ibaraki Pref., Japan, July 2003 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 Closterium Closterium


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