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Name derivation:
Apparently named in honor of Wilhelm Vischer of Basel, Switzerland, who developed methods of isolating and culturing algae (Vischer 1926), and published at least from 1926 - 1960 as referenced in Gärtner (1985).
Classification:
Vischeria Pascher 1937; 4 of 12 species descriptions are currently accepted taxonomically (Guiry and Guiry 2013). Order Eustigmatales Family Eustigmataceae Polyedriella is considered a synonym in Phycokey.
Morphology:
Unicells that are spherical, polyhedral, or iffegular in shape, 7-20 µm, with one or several chloroplasts (Ott and Oldham-Ott 2003).
Similar genera:
Some species are synonymous with Chlorobotrys and Polyedriella species, including V. punctata, V. stellata and C. Stellata; and V. helvetica and P. helvetica (Ott and Oldham-Ott 2003).
Habitat:
Freshwater bogs, dystrophic and mesotrophic onds, often associated with Sphagnum and other aquatic plants in organically rich waters. Collected in Minnesota and Alaska USA (Ott and Oldham-Ott 2003).
References:
Gärtner, G. 1985. The culture collection of algae at the Botanical Institute of the University at Innsbruck (Austria). Ber. nat.-med. Verein Innsbruck 72:33-52. Guiry, M.D. and G.M. Guiry 2014. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 17 April 2014. Ott, D.W., and C.K. Oldham-Ott. 2003. Eustigmatophyte, Raphidophyte, and Tribophyte Algae. In: Freshwater Algae of North America, J.D. Wehr and R.G. Sheath (Eds). (pp. 423 - 469). Pascher, A. 1937. Heterokonten. In: Kryptogamen-Flora...2. Aufl. XI. Band. (Rabenhorst, L. Eds), pp. i-ii (Vorwort) + 1-480. Leipzig. Vischer, W. 1926. Études d'algologie expérimentale. Bull. Soc. Bot. Geneve 2^me 28:23-85.