Fischerella
{{Short description|Genus of cyanobacteria}}
{{Automatic taxobox
|image = Cyanobacteriabranchedforms026 Fischerella.jpg
|image_caption =
|taxon = Fischerella
|authority = (Bornet & Flahault) Gomont
}}
Fischerella is a genus of cyanobacteria belonging to the family Hapalosiphonaceae.{{cite web |title=Fischerella (Bornet & Flahault) Gomont, 1895 :: Algaebase |url=https://www.algaebase.org/search/genus/detail/?genus_id=43621 |website=www.algaebase.org |access-date=22 January 2021}}
The genus was first described by M. Gomont in 1895.
The genus has cosmopolitan distribution.{{cite web |title=Fischerella Bornet & Flahault |url=https://www.gbif.org/species/8190103 |website=www.gbif.org |access-date=22 January 2021 |language=en}}
The genus name of Deightoniella is in honour of Christian Fischer (1801–1892), who was a Bohemian scientist and industrialist from Karlsbad (Baden).{{cite book | last=Burkhardt | first=Lotte | title=Eine Enzyklopädie zu eponymischen Pflanzennamen |trans-title=Encyclopedia of eponymic plant names | publisher=Botanic Garden and Botanical Museum, Freie Universität Berlin | year=2022 | isbn=978-3-946292-41-8 | url=https://doi.org/10.3372/epolist2022|format=pdf |language=German |location=Berlin | doi=10.3372/epolist2022 |access-date=January 27, 2022}}
The genus was circumscribed by Jean-Baptiste Édouard Bornet and Charles Henri Marie Flahault in J. Bot. (Morot) Vol.9 on pages 51-52 in 1895.
Known species: