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Hormothece

Generic name: HORMOTHECE Jao, 1944. Sinensia 15: 77.
Synonyms:
Diagnosis:
Type species: Hormothece rupestris Jao 1944
Descriptions:
Komárek (1992): Unicellular - colonial; colonies microscopic, composed from thick mucilaginous, colourless, usually more or less crosswise lamellated (additional growth zones) stalks, at the bases confluent and sometimes pseudodichotomously branched, usually joined to the substrate, at the upper end or in apical parts with freely disposed cells. Cells solitary, in groups or loosely arranged in short rows, widely oval, oval or cylindrical with rounded ends, blue-green, with homogeneous or slightly
granular content.
Genotype differences, molecular data:
Reproduction strategies, life cycles, cell division:
Komárek (1992): Cell divison (binary fission) crosswise, perpendicularly to the long axis of cells, in one and the same plane in successive cell cycles. Daughter cells soon separate one from another and form their own gelatinous envelopes, widened to the basis of a stalk. Reproduction by the disintegration of colonies and liberation of solitary cells.
Ultrastructure:
Taxonomic position, higher hierarchy:
Cyanophyceae, Chroococcales, Synechococcaceae, Aphanothecoideae
Notes to taxonomy, misinterpretations:
Ecology, ecophysiology, ecological significance:
Komárek (1992): A little known genus containing periphytic species growing subaerophytically or in clear, freshwater submerse biotopes. Two species are known from China, one from Indonesia, one from Spain.

Physiology and biochemistry:
Distribution, endemism, problematic citations:
Reference strain:
Infrageneric scheme, species concept:
List of species:
Hormothece banyolensis (Margalef) Komárek et Anagnostidis 1985
Hormothece cylindrocellulare (Geitler) Komárek et Anagnostidis 1985
Hormothece geitleriana Azevedo et Sant' Anna 1994
Hormothece jaoi Ley 1947
Hormothece rupestris Jao 1944
Hormothece starmuehleri (Bourrelly) Komárek et Anagnostidis 1995
Keys:
List of stains:
Drawings:
Komárek 1992
Application technology:
Literature:

  2.1 taxonomy: Jao 1944, Ley 1947, Bourrelly 1977, Komárek 1992
  2.2 cytomorphology:
  2.3 16S rRNA sequencing:
  2.4 biology and life cycles:
  2.5 ecology: