Arcanodiscus indistinctus Goeyers & Van de Vijver 2020, sp. nov. ...

• Main Authors: Goeyers, Charlotte, Vijver, Bart Van De
• Format: Text
• Language: unknown
• Published: Zenodo 2020
• Subjects: Biodiversity; Taxonomy; Chromista; Ochrophyta; Bacillariophyceae; Arcanodiscales; Arcanodiscaceae; Arcanodiscus; Arcanodiscus indistinctus; Antarctic; Campbell Island; Pacific; Antarc*
• Online Access: https://dx.doi.org/10.5281/zenodo.4329154; https://zenodo.org/doi/10.5281/zenodo.4329154

Arcanodiscus indistinctus Goeyers & Van de Vijver sp. nov. http://phycobank.org/ 102319 Figs 81–96, 125–131 Etymology The specific epithet ‘ indistinctus ’ refers to the lack of any specific peculiarity of this species as a distinguishing feature. Material examined Holotype CAMPBELL ISLAND • sub-Antarctic region; sample BAS303; 12 Jan. 1970; D. Vitt leg.; BR-4580. Isotype CAMPBELL ISLAND • same collection data as for holotype; slide at University of Antwerp, Belgium; PLP-371. Description Light microscopy (Figs 81–96) Frustules discoid, almost square to rectangular with broadly rounded edges and convex valve faces. Frustules never seen attached to each other, always solitary. Multiple discoid chloroplasts present. Girdle bands not discernible in LM. Valves rather strongly silicified, rounded with a thick mantle and convex, weakly domed valve face. Valve dimensions (n = 25): valve diameter 9–17 μm, frustule height (n = 2): 7–9 μm. Central area comprising a large, smooth, hyaline zone, almost 75% of the ... : Published as part of Goeyers, Charlotte & Vijver, Bart Van De, 2020, Revision of the non-marine centric diatom flora (Bacillariophyta) of the sub-Antarctic Campbell Island (southern Pacific Ocean) with the descriptions of five new species, pp. 1-30 in European Journal of Taxonomy 694 on pages 16-18, DOI: 10.5852/ejt.2020.694, http://zenodo.org/record/3973347 ...