Leibleinia (Gomont) Hoffman, 1985

Holotype species: Leibleinia baculum (Gomont) Hoffmann

Original publication and holotype designation: Hoffmann, L. (1985). Quelques remarques sur la classification des Oscillatoriaceae. Cryptogamie, Algologie 6: 71-79.

Description: 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 erect and free ends, creeping on the substrate (usually coiling about other filamentous bluegreens or other algae) and attached to it by the central part, with simple, firm but thin, colorless sheath enveloping the trichome and opened at the apex, unbranched or very rarely falsely branched (usually with one lateral branch), 1.5-12 (?) _m wide. Trichomes cylindrical, with cylindrical cells, sometimes with a little modified morphology of cells in apical parts (trichome ends more constricted at crosswalls or slightly widened), unconstricted or constricted at the crosswalls in the middle part, not attenuated, nonmotile. Cells Å isodiametric, slightly shorter or 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. Cells divide by symmetrical, crosswise binary fission, cells grow into the original size before next division. Reproduction by nonmotile hormocytes which adhere lengthwise by their sides to the substrate and grow up at both poles. Hormocytes escape from trichomes in their apical parts without help of necridic cells. Majority of species grow epiphytic on other filamentous and thallose algae and water plants. Both freshwater and marine species are known. A little known genus, not yet in culture.

Information contributed by: J. Komárek. The most recent alteration to this page was made on 2023-03-03 by M.D. Guiry.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Gender: This genus name is currently treated as feminine.

Most recent taxonomic treatment adopted: Strunecký, O., Ivanova, A.P. & Mares, J. (2022 '2023'). An updated classification of cyanobacterial orders and families based on phylogenomic and polyphasic analysis (Review). Journal of Phycology 59(1): 12-51.

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Contributors
Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in CD format. These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above. The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.

Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.

Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=43305

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 03 March 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 22 November 2024