Lange-Bertalot 2004 Category: Monoraphid
TYPE SPECIES: Platessa bavarica Lange-Bertalot and Hofmann in Lange-Bertalot
Cells form single cells or short chains. External raphe fissures are straight with distinct central and terminal pores. Platessa lacks terminal deflections or hooks of the raphe fissures. Girdle bands are narrow and lack ornamentation.
The genus Platessa was established (Lange-Bertalot 2004) and contains the former Achnanthes conspicua Mayer and species within the A. holsatica Hustedt group. Members of this genus are widely reported, but low in abundance in collections. Species within Platessa have misidentified or overlooked.
Cite This Page:
Spaulding, S., and Edlund, M. (2008). Platessa. In Diatoms of the United States. Retrieved April 18, 2014, from http://westerndiatoms.colorado.edu/taxa/genus/Platessa