Leibleinia
| Generic name: LEIBLEINIA (Gomont) L. Hoffmann, 1985. Cryptog. Algol. 6, 2: 77. | ||||||||||
| Synonyms: [LEIBLEINIA Gomont in Morot, 1890. J. de Botanique IV:354.; Kützing 1843: Phycologia generalis, p. 221] | ||||||||||
| Diagnosis: Gomont (1892) sub subgenus: Plantae epiphyticae, marinae. Fila medio affixa, utrinque erecta. Vaginae tenues, hyalinae. |
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| Type species: Leibleinia baculum (Gomont) L. Hoffmann 1985 | ||||||||||
| Descriptions: Komárek (1992): Filamentous; filaments solitary, rarely (in old stages) tangled together, isopolar, waved or irregularly spirally coiled (particularly in the middle parts), sometimes with more or less erected and free ends, creeping on the substrate (usually coiling about other filamentous cyanophytes or algae) and attached to it by the central part, with simple, firm but thin, colourless sheath enveloping the trichome and opened at the apex, unbranched or very rarely falsely branched (usually with one lateral branch), 1.5-12 (?) μm wide. Trichomes cylindrical, with cylindrical cells, sometimes with a little modified morphology of cells in apical parts (trichome ends more constricted at cross walls or slightly widened), unconstricted or constricted at the cross walls in the middle part, not attenuated, immotile. Cells +/- isodiametric, slightly shorter or up to distinctly longer than wide, cylindrical or sometimes barrel-shaped at the ends, without aerotopes, pale greyish, blue-green or yellowish; end cells rounded, without thickened cell wall or calyptra. Heterocytes and akinetes lacking. |
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| Genotype differences, molecular data: | ||||||||||
| Reproduction strategies, life cycles, cell division: Komárek (1992): Cells divide by symmetrical, crosswise binary fission, cells grow into the original size before next division. Reproduction by immotile hormocytes which adhere lengthwise by their sides to the substrate and grow up at both poles. Hormocytes liberate from trichomes in their apical parts without help of necridic cells. |
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| Ultrastructure: | ||||||||||
| Taxonomic position, higher hierarchy: Cyanophyceae, Oscillatoriales, Pseudanabaenaceae, Pseudanabaenoideae Notes to taxonomy, misinterpretations: |
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| Ecology, ecophysiology, ecological significance: Komárek (1992): Majority of species grow epiphytic on other filamentous and thallic algae and water plants. Both freshwater and marine species are known. A little known genus, not yet in cultures. |
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| Physiology and biochemistry: |
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| Distribution, endemism, problematic citations: |
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| Reference strain: |
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| Infrageneric scheme, species concept: |
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| List of species: wide types Leibleinia aeruginea (Gardner) Anagnostidis 2001 Leiblenia agardhii Crouan ex Anagnostidis et Komárek 1988 Leibleinia baculum (Gomont) L. Hoffmann 1985 Leibleinia gracilis Meneghini ex Anagnostidis et Komárek 1988 Leibleinia subtilis (Holden in Collins) Anagnostidis et Komárek 1988
thin types Unclear taxa: |
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| Keys: | ||||||||||
| List of stains: | ||||||||||
Drawings: Komárek 1992
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Literature:
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