Chlorophyceae:
Chlorococcales: Oocystaceae
Kirchneriella acuminata
Hirose et Akiyama
or Kirchneriella aperta Teiling (G.E. Dillard, 1989)
Family: Unicells or colonies of non-fixed number of cells; cell body variable in shape;
one or more chloroplasts variable in shape; a sexual reproduction by autospore
(Illustrations of The Japanese Fresh-water Algae, 1977).
Genus: Colonies of 4, 8, 16 or 32 cells in a gelatinous sheath; cell body long cylindroid,
strongly curved or twisted, both ends rounded; a chloroplast full within the cell;
a single pyrenoid
(Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Species: Colonies within a gelatinous matrix, cells crescent in shape,
termini tapered, 25-30 μm long,
8-10 μm wide
(Illustrations of The Japanese Fresh-water Algae, 1977).
|
Similar Genus -->>
Selenastrum;
Selenodictyum;
Dimorphococcus;
Kirchneriella acuminata Hirose et Akiyama (or K. aperta Teiling (by G.E. Dillard, 1989) ?),
colonies of cells within a gelatinous matrix, cells crescent in shape,
termini pointed, μm long, μm wide
x 400, x 640, Saitama Pref., Japan, May-June 1999 by Y. Tsukii
50 μm
100 μm
150 μm; x 400
Kirchneriella lunaris (Kirchner) Moebius:
Colonies of 4-32 cells within a gelatinous matrix, cells crescent in shape,
termini rounded, 8-12 μm long,
3-6 μm wide
(Illustrations of The Japanese Fresh-water Algae, 1977).
Kirchneriella obesa (W. West) Schmidle:
Similar to K. lunaris but more spherical,
5-6 μm diam.
(Illustrations of The Japanese Fresh-water Algae, 1977).
Kirchneriella acuminata Hirose et Akiyama:
Colonies within a gelatinous matrix, cells crescent in shape,
termini tapered, 25-30 μm long,
8-10 μm wide
(Illustrations of The Japanese Fresh-water Algae, 1977).
Please click on images for viewing enlarged.
Copyright
Protist Information Server