Taxon Account

Nitzschia linearis W. Smith; 1853; 39

Key references

Lange-Bertalot H., Hofmann G., Werum M., Cantonati M. 2017. Freshwater Benthic Diatoms of Central Europe: Over 800 Common Species Used in Ecological Assessment. Cantonati M., Kelly M.G., Lange-Bertalot H. (eds.), Koeltz Botanical Books, Schmitten-Oberreifenberg, Germany. 942 pp

Morphology

Size
Length 75.6-207.5 µm, maximum width 6.25-7.5 µm (UK population); (Lange-Bertalot et al. 2017 has length 50-130 µm, width 5-7.5 µm ).

Shape
Valves linear or linear-lanceolate, slightly constricted at the centre on the raphe side. Poles rostrate or subcapitate, asymmetrical, curved towards the side opposite the raphe, raphe side convex, opposite side slightly concave.

Symmetry
Isopolar.

Striae
Parallel, clearly visible, ca. 30 in 10 µm in the valve centre, ca. 35 in 10 µm towards the poles (Lange-Bertalot et al. 2017 has 27-30 in 10 µm).

Other features
Large fibulae, wider spaced in the valve centre, 11-13 in 10 µm (Lange-Bertalot et al. 2017 has 9-14 in 10 µm).


SEM morphology
A small ridge present on the valve margin opposite the raphe.

Mantle valve surface and girdle bands with raised ornamentation varying from meandering linear or oblong ridges to isolated nodules.

Edge of girdle bands with regular row of raised nodules.

Literature

References are given in chronological order.

Reference
Citation
Smith W. 1853. Synopsis of British Diatomaceae. John Van Voorst, London, Vol.1. 89 pp; 1-31 pl. Morphology; Taxonomy; Description; Illustrations
Krammer K., Lange-Bertalot H. 1988. Süßwasserflora Mitteleuropas. Bacillariophyceae. 2. Teil. Bacillariophyceae, Epithemiaceae, Surirellaceae. Eds. Ettl H., Gerloff J., Heynig H., Mollenhauer D., Gustav Fischer Verlag, Stuttgart. 596 pp Morphology; Illustrations; Taxonomy
Lange-Bertalot H., Hofmann G., Werum M., Cantonati M. 2017. Freshwater Benthic Diatoms of Central Europe: Over 800 Common Species Used in Ecological Assessment. Cantonati M., Kelly M.G., Lange-Bertalot H. (eds.), Koeltz Botanical Books, Schmitten-Oberreifenberg, Germany. 942 pp Morphology; Ecology; Illustrations;
This page should be cited as:

Jüttner I., Williams D. M. Nitzschia linearis W. Smith; 1853; 39. In: Jüttner I., Carter C., Chudaev D., 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=3369. [Accessed:  ].

Image Gallery

Record last modified: 27/12/2020