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Thalpophila

Generic name: THALPOPHILA Borzì 1907. Atti Congr. Nat. Ital. 1906: 373.
Synonyms:
Diagnosis:
Type species: Thalpophila cossyrensis Borzì 1907
Descriptions:
Komárek (1992): Filamentous – thallous; thallus in form of mats on the substrate with more or less parallely oriented or slightly-coiled creeping filaments-with not very common true branches. Trichomes uniseriate, not distinctly diversified, old more torulous, young ones cylindrical and sometimes slightly thinner, both constricted at cross walls, not attenuated toward the ends, with rounded terminal cells. True branching of T-type, lateral; branches bent soon into the direction of the original trichome.
Sheaths thick, lamellated, gelatinizing from outside and confluent sometimes with neighbouring sheaths. Cell barrel-shaped or cylindrical, with finely granular content. Heterocytes intercalar, barrel-shaped, solitary, not very common. Akinetes described, small, developing serially in rows in old trichomes, with thickened cell wall.
Genotype differences, molecular data:
Reproduction strategies, life cycles, cell division:
Komárek (1992): Cells divide crosswise. Reproduction only by solitary cells (monocytes), liberating from open sheaths, hormogonia or hormocysts not known.
Ultrastructure:
Taxonomic position, higher hierarchy:
Cyanophyceae, Stigonematales, Mastigocladaceae, Mastigocladoideae

Notes to taxonomy, misinterpretations:
Ecology, ecophysiology, ecological significance:
Komárek (1992): The type species-described from volcanic rocks near thermal springs (atmophytic) in the island Pantellaria, Italy, the other species are known from calcareous substrate of thermal springs in Yellowstone National Park, USA and from thermal waters in Japan.
Physiology and biochemistry:
Distribution, endemism, problematic
citations:
Reference strain:
Infrageneric scheme, species concept:
List of species:
Thalpophila caldaria Emoto et Yoneda 1941

Thalpophila cossyrensis Borzì 1907
Thalpophila imperialis Copeland 1936
Keys:
List of stains:
Drawings:
Komárek 1992
Application technology:
Literature:

  2.1 taxonomy: Geitler 1932, Geitler 1942, Emoto & Yoneda 1941, Bourrelly 1970, Komárek 1992
  2.2 cytomorphology:
  2.3 16S rRNA sequencing:
  2.4 biology and life cycles:
  2.5 ecology: