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Colteronema

Generic name: COLTERONEMA Copeland 1936. Ann. N. Y. Acad. Sci. 36: 79.
Synonyms:
Diagnosis:
Type species: Colteronema funebre Copeland 1936
Descriptions:
Komárek (1992): Thallous; thallus membranous, leathery or fibrous, macroscopic up to 1 mm high, composed from more or less free, horizontally growing, densely packed, slightly flexuous filaments of the same morphology, with true, laterally branching of trichomes, and from more or less erect, usually pseudodichotomously branched filaments (T- and V-types of branching); pseudodichotomous branches arise by longitudinal division of the apical cells, lateral branches of intercalar cells; filaments usually crooked, somewhat roughened, cylindrical. Trichomes +/- cylindrical, toralous, uniseriate, distinctly constricted at cross-walls, enclosed in colourless or yellow~brown, firm, thick, lamellated sheaths, with apical growth. Cells subcylindrical, barrel-shaped to ellipsoidal, longer than wide; end cells rounded, sometimes slightly up to distinctly enlarged. Heterocytes and akinetes were not observed.
Genotype differences, molecular data:
Reproduction strategies, life cycles, cell division:
Komárek (1992):Cell division evidently by the cross-wise, perpendicular fission. Reproduction by few-celled hormogonia, which separate at the ends of branches.
Ultrastructure:
Taxonomic position, higher hierarchy:
Cyanophyceae, Stigonematales, Loriellaceae
Notes to taxonomy, misinterpretations:Monospecific genus
Ecology, ecophysiology, ecological significance:
Komárek (1992): The single species known still only from Yellowstone National Park, U.S.A. Terrestrial, atmophytic near thermal springs (places influenced by hot steam). A little known genus
Physiology and biochemistry:
Distribution, endemism, problematic
citations:
Reference strain:
Infrageneric scheme, species concept:
List of species:

Colteronema funebre Copeland 1936
Keys:
List of stains:
Drawings:
Komárek (1992)
Application technology:
Literature:

  2.1 taxonomy: Copeland 1936, Geitler 1942, Komárek 1992
  2.2 cytomorphology:
  2.3 16S rRNA sequencing:
  2.4 biology and life cycles:
  2.5 ecology: