Potapova, M.
(2016).
Gliwiczia.
In Diatoms of North America.
Retrieved September 17, 2024, from https://diatoms.org/genera/gliwiczia
Monoraphid
Gliwiczia
Frustules monoraphid
Valves elliptic
Striae and areolae more dense on raphe valve than on rapheless valve
Internal cavum on both valves
Stauros on both valves
Gliwiczia was established in 2013 to accommodate Achnanthes/Planothidium calcar and similar species. This genus has monoraphid frustules with a slightly concave raphe valve and almost flat, rapheless valve. Valves are elliptic. Both valves bear an internal cavum and a fascia. Striae and areolae are considerably more dense and smaller on...