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Nematoplaca

Generic name: NEMATOPLACA Geitler, 1933. Arch. Hydrobiol., Suppl. 12: 628.
Synonyms:
Diagnosis:
Type species: Nematoplaca incrustans Geitler 1933. - Monotypic genus
Descriptions:
Komárek (1992):Thallous; thallus covering the substrate, composed from basal pseudo- or nematoparenchymatous part, in which the cells divide irregularly, and from which grow, the more or less erected, short, densely parallely agglomerated, but well recognizable filaments with confluent, colourless sheaths. Trichomes later multiserial, laterally and pseudodichotomously, repeatedly branched (more or less V-type), slightly narrowed to the ends (hormogonal trichome structure well visible particularly in preserved samples). Cells irregular - rounded, end cell usually conical - rounded; around cells sometimes own, more or less thick, firm or slightly gelatinizing envelopes. Heterocytes and akinetes missing.
Genotype differences, molecular data:
Reproduction strategies, life cycles, cell division:
Komárek (1992): Cells divide irregularly, in filaments mainly crosswise. Reproduction probably by solitary liberated cells (monocytes) and possibly also by short pieces of disintegrated trichomes; hormogonia were not observed.
Ultrastructure:
Taxonomic position, higher hierarchy:
Cyanophyceae, Stigonematales, Capsosiraceae
Notes to taxonomy, misinterpretations:
Ecology, ecophysiology, ecological significance:
Komárek (1992): The single species was described from creeks in the central Sumatra (Indonesia), where it grows on the surface of stones.
Physiology and biochemistry:
Distribution, endemism, problematic citations:
Reference strain:
Infrageneric scheme, species concept:
List of species:
Nematoplaca incrustans Geitler 1933
Keys:
List of stains:
Drawings:
Komárek 1992
Application technology:
Literature:
  2.1 taxonomy: Geitler 1933, Geitler 1942, Geit1er & Ruttner 1935, Bourrelly 1970, Komárek 1992
  2.2 cytomorphology:
  2.3 16S rRNA sequencing:
  2.4 biology and life cycles:
  2.5 ecology: