Bishop, I.,
Bahls, L.
(2026).
Dickieia.
In Diatoms of North America.
Retrieved May 21, 2026, from https://diatoms.org/genera/dickieia
Symmetric Biraphid
Dickieia
Fascia-like central area with short, widely-spaced striae at margins
Valves deep, highly arched
Striae composed of small, round poroids
Chloroplast single-lobed, with large central pyrenoid
Valves are lanceolate, linear-lanceolate, or elliptic-lanceolate, often with protracted ends. The valve face is strongly curved onto the mantle, which is relatively deep. As a result, cleaned frustules often come to rest in girdle view. A fascia is present and is interrupted at the margins by short, widely-spaced striae. These short...