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Fischerella

Generic name: FISCHERELLA (Bornet et Flahault) Gomont, 1895. J. Bot. 9: 52.
Synonyms:
Diagnosis:
Type species: Fischerella thermalis-Schwabe ex Gomont 1895
Descriptions:
Komárek (1992): Filamentous - thallous; thallus usually felt-like, rarely in compact mats, composed from creeping, uni- or multiserial filaments and morphologically different, more or less erected uniserial branches. Creeping trichomes usually moniliform, enveloped by thick, waved, sometimes slightly lamellated and coloured sheath, with usually barriliform cells, sometimes enveloped by their own gelatinous sheaths; erected true branches develop usually unilaterally after the lengthwise cell division in basal trichomes (T-type of branching), usually cylindrical, with cylindrical and often elongated cells and thin, mainly colourless sheaths. Cells usually with slightly granular
plasma, thylakoids distributed irregularly over the whole cell content. Heterocytes intercalar, subspherical in basal trichomes, cylindrical in branches. Akinetes develop occasionally and irregularly in basal trichomes (known only in few species).
Genotype differences, molecular data:
Reproduction strategies, life cycles, cell division:
Komárek (1992):Reproduction by uniserial hormogonia, which seprate from ends of branches; they are usually morphologically very distinct (different from other cells in branches) and contain aerotopes (liberation usually during humid vegetation periods).
Ultrastructure:
Taxonomic position, higher hierarchy:
Cyanophyceae, Stigonematales, Fischerellaceae
Notes to taxonomy, misinterpretations:About 15 species, from which only several are well known (and were isolated in cultures).
Ecology, ecophysiology, ecological significance:
Komárek (1992):Majority of species are subaerophytic, growing on wet (often acidic, peaty) soils, several species occur only in tropical forests (on bark of trees, mosses, etc.).
Physiology and biochemistry:
Distribution, endemism, problematic citations:
Reference strain:
Infrageneric scheme, species
concept:
List of species:
Fischerella thermalis-Schwabe ex Gomont, 1895
Keys:
List of stains:
Drawings:
Komárek 1992
Application technology:
Literature:

  2.1 taxonomy: Gomont 1895, Geitler 1932, Geitler 1942, Rippka et al. 1979, Nierzwicki et al. 1982, Anagnostidis & Komárek 1990, Komárek 1992
  2.2 cytomorphology:
  2.3 16S rRNA sequencing:
  2.4 biology and life cycles:
  2.5 ecology: