155,266 species and infraspecific names are in the database, 21,864 images, 60,052 bibliographic items, 435,064 distributional records.

Taxonomy Detail

Family Hapalosiphonaceae

Hapalosiphonaceae Elenkin, 1916: 278, 280.

Source: Komárek, J., Kastovsky, J., Mares, J. & Johansen, J.R. (2014). Taxonomic classification of cyanoprokaryotes (cyanobacterial genera) 2014, using a polyphasic approach. Preslia 86: 295-335.

Original publication: Elenkin, A.A. (1916). O znachenii nastoyashchago i lozhnago vetvleniya u sinezelenykh vodoroslej v sem. Stigonemataceae. Izviestiia Imperatorskago Sankt-Peterburgskago botanicheskago sada 16: 272-280.

A morphologically character-rich, yet difficult to properly identify lineage, characterized by isopolar filaments with T-type true branching, filaments and branches which may be uni- or multiseriate. A difficult clade to sequence due to recalcitrant mucilaginous sheaths, certain genera appear polyphyletic (e.g., Fischerella, a separate family in some phylogenies) while others appear monophyletic (e.g., Westiellopsis). However, assessments of this lineage are hampered by misidentifications of deposited cultures and sequences in GenBank.

Komárek et al. (2014) suggest that this family is in need of revision with more sister taxa and strains in culture collections sequenced.

Key References
Komárek, J. (2013). Süsswasserflora von Mitteleuropa. Cyanoprokaryota: 3rd part: heterocystous genera. Vol. 19 pp. [i]-xviii, [1]-1130. Heidelberg: Springer Spektrum.

Linking to this page: http://www.algaebase.org/browse/taxonomy/detail/?taxonid=87027

Citing AlgaeBase
Cite this record as:
Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 24 May 2019.

Algaebase taxon LSID: urn:lsid:algaebase.org:taxname:87027

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