Divergita Sabir and Theriot, 2018

Sabir, J. S. M., Theriot, E. C., Lobban, C. S., Alhebshi, A. M., Al-Malki, A. L., Hajrah, N. H., Khiyami, M. A., Obaid, A. Y., Jansen, R. K. & Ashworth, M. A., 2018, Systematics of araphid diatoms with asymmetric rimoportulae or densely packed virgae, with particular attention to Hyalosynedra (Ulnariaceae, Bacillariophyta), Phytotaxa 347 (1), pp. 1-49 : 21

Divergita Sabir and Theriot , nov. gen.

Description: —Valves lanceolate, often with capitate ends, often curved along the transapical axis. Sternum lanceolate. Internal covers of the rimoportulae are asymmetrical. One rimoportula toward each end. Distinguished from similar genera by areolae which form a decussate pattern externally. Apical pore fields very shallow, sometimes not obviously sunken (not forming an ocellulimbus) at all. Valves bilayered, with the internal layer hyaline but for a single pore between each pair of virgae, the pore located at the junction of the face and mantle.

Type species: — Divergita al-ghamdii Sabir and Theriot

Etymology: —The name “ Divergita ” refers to the diverging rows of pores as the striae continue over the mantle.