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Ardissoneales Round 1990, emend. Lobban & Ashworth, 1827

Lobban, Christopher S., Ashworth, Matt P., Camacho, Terance, Lam, Daryl W. & Theriot, Edward C., 2022, Revision of Ardissoneaceae (Bacillariophyta, Mediophyceae) from Micronesian populations, with descriptions of two new genera, Ardissoneopsis and Grunowago, and new species in Ardissonea, Synedrosphenia and Climacosphenia, PhytoKeys 208, pp. 103-184 : 103

publication ID

 https://dx.doi.org/10.3897/phytokeys.208.89913

persistent identifier

https://treatment.plazi.org/id/366CBA73-2824-592F-864D-B3CD6AA65F76

treatment provided by

PhytoKeys by Pensoft

scientific name

 Ardissoneales Round 1990, emend. Lobban & Ashworth
status

 

Ardissoneales Round 1990, emend. Lobban & Ashworth

Description.

Highly elongate valves with development from a bifacial annulus (not always visible) and lacking rimoportulae and apical pore fields (ocelli/ocellulimbi). Frustules often morphologically heteropolar in valve view, girdle view, or both, attached to substrata by mucilage stalks. Valves with simple areolae in uniseriate striae, internal transapical costae more or less developed. Valvocopula and copula closed, fimbriate internal margins. Pleura (when present) narrow, fimbriate inner margin, with larger apical caps.

Specimens