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Chondrogloea

Generic name: CHONDROGLOEA Schmidle 1901. In Engler, Bot. Jahrb. Syst. 30: 247.
Synonyms:
Diagnosis:
Type species: Chondrogloea africana Schmidle 1901
Descriptions:
Komárek (1992):Thallous; thallus micro- or macroscopic, prostrate, mucilaginous or slightly cotton-like, sometimes incrustated by calcium-carbonate, composed from free, +/- tangled filaments. Sheaths fine, thin, colourless or yellowish, sometimes indistinct. Trichomes always uniseriate, with lateral true branches (T-type), cylindrical or torulous when old; branches arise mainly from one side, cylindrical at the base, torulous in the middle and again cylindrical and narrowed to the apex. Cells in torulous part barrel-shaped, usually isodiametric or slightly longer or shorter than wide, in other parts long-cylindrical. Heterocytes usually commonly present, intercalar, solitary, more or less cylindrical. Akinetes not proved.
Genotype differences, molecular data:
Reproduction strategies, life cycles, cell division:
Komárek (1992): Cell division crosswise, perpendicularly to the trichome, commonly occur meristematic zones. Reproduction by hormogonia (with torulous cells ?).
Ultrastructure:
Taxonomic position, higher hierarchy:
Cyanophyceae, Stigonematales, Mastigocladaceae, Mastigocladoideae
Notes to taxonomy, misinterpretations:
Ecology, ecophysiology, ecological significance:
Komárek (1992): Known only from tropical countries (Africa, India, Indonesia); on wet rocks and epilithic submersely in clear springs and lakes.
Physiology and biochemistry:
Distribution, endemism, problematic
citations:
Reference strain:
Infrageneric scheme, species concept:

List of species:
Chondrogloea africana Schmidle 1901
Chondrogloea flagelliformis (Schmidle) Geilter 1932

Unclear taxa:
Fischerella indica (Desikachary) Kaštovský et Johansen 2008

Keys:
List of stains:
Drawings:
Komárek (1992)
Application technology:
Literature:

  2.1 taxonomy: Geitler 1932, Geitler 1942
  2.2 cytomorphology:
  2.3 16S rRNA sequencing:
  2.4 biology and life cycles:
  2.5 ecology: