Planothidium reichardtii Lange-Bertalot & Werum; 2004; 172
Key references
Werum M., Lange-Bertalot H. 2004. Diatoms in Springs from Central Europe and elsewhere under the influence of hydrogeology and anthropogenic impacts. Iconographia Diatomologica 13 (Lange-Bertalot H., ed.) A.R.G.Gantner, Ruggell. 417 pp
Morphology
Size
8-18 µm long, 4-6.5 µm wide (Werum & Lange-Bertalot 2004).
Shape
Valves elliptic-lanceolate with protracted rostrate to subcapitate ends.
Symmetry
Isopolar, heterovalvar.
Striae
Striae radiate throughout on both valves.
Axial area
Narrow, linear, widening slightly towards central area on raphe valve.
Central area
Raphe valve: asymmetric, acute-angled fascia on one side, a rounded area bordered by 2-3 shortened striae on opposite side; rapheless valve: asymmetric with sinus (simple horseshoe-shaped depression) on one side, few slightly shortened striae on opposite side.
Raphe
Straight, filiform with expanded proximal raphe ends.
8-18 µm long, 4-6.5 µm wide (Werum & Lange-Bertalot 2004).
Shape
Valves elliptic-lanceolate with protracted rostrate to subcapitate ends.
Symmetry
Isopolar, heterovalvar.
Striae
Striae radiate throughout on both valves.
Axial area
Narrow, linear, widening slightly towards central area on raphe valve.
Central area
Raphe valve: asymmetric, acute-angled fascia on one side, a rounded area bordered by 2-3 shortened striae on opposite side; rapheless valve: asymmetric with sinus (simple horseshoe-shaped depression) on one side, few slightly shortened striae on opposite side.
Raphe
Straight, filiform with expanded proximal raphe ends.
Literature
References are given in chronological order.
Reference |
Citation |
|---|---|
| Werum M., Lange-Bertalot H. 2004. Diatoms in Springs from Central Europe and elsewhere under the influence of hydrogeology and anthropogenic impacts. Iconographia Diatomologica 13 (Lange-Bertalot H., ed.) A.R.G.Gantner, Ruggell. 417 pp | Morphology; Taxonomy; Type Illustration; Description; |
| Wojtal A.Z., Sobczyk Ł. 2012. The influence of substrates and physicochemical factors on the composition of diatom assemblages in karst springs and their applicability in water-quality assessment. Hydrobiologia. 695: 97-108. | Ecology |
This page should be cited as:
Jüttner I., Van de Vijver B. Planothidium reichardtii Lange-Bertalot & Werum; 2004; 172. In: Jüttner I., Carter C., Cox E.J., Ector L., Jones V., Kelly M.G., Kennedy B., Mann D.G., Turner J. A., Van de Vijver B., Wetzel C.E., Williams D.M..
Freshwater Diatom Flora of Britain and Ireland. Amgueddfa Cymru - National Museum Wales. Available online at https://naturalhistory.museumwales.ac.uk/diatoms/browsespecies.php?-recid=4630. [Accessed:
].
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Record last modified: 27/12/2020