Navicula angusta Grunow; 1860; 528

Key references

Lange-Bertalot H. 1980. Zur taxonomischen Revision einiger ökologisch wichtiger «Naviculae lineolatae» Cleve. Die Formenkreise um Navicula lanceolata, N. viridula, N. cari. Cryptogamie: Algologie. 1(1): 29-50.

Lange-Bertalot H. 2001. Navicula sensu stricto. 10 Genera Separated from Navicula sensu lato. Frustulia. Ruggell, A.R.G. Gantner. 526 pp

Morphology

Size
42-58 µm long, 6-7 µm wide (UK population), 30-78 µm long, 5-8 µm wide (Lange-Bertalot 2001).

Shape
Valves linear with protracted rostrate and broadly rounded apices.

Symmetry
Isoploar, bilaterally symmetrical.

Striae
Striae radiate becoming convergent near the apices, 12-13 in 10 µm (UK population), 11-12 in 10 µm (Lange-Bertalot 2001).

Axial area
Narrow, linear, widening slightly towards central area.

Central area
Rounded or rhombic and slightly asymmetrical.

Raphe
Raphe filiform with expanded central pores.

Literature

References are given in chronological order.

Reference	Citation
Grunow A. 1860. Über neue oder ungenügend gekannte Algen. Erste Folge, Diatomeen, Familie Naviculaceen. Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien. 10: 503-582; pls. 3-7.	Morphology; Description; Illustrations
Van Heurck H. 1880. Synopsis des Diatomées de Belgique. Atlas. Ducaju & Cie., Anvers.; 1-30 pls	Illustrations
Patrick R., Reimer C.W. 1966. The Diatoms of the United States. Exclusive of Alaska and Hawaii. Volume 1. Fragilariaceae, Eunotiaceae, Achnanthaceae, Naviculaceae. Monographs of the Academy of Natural Sciences of Philadelphia 13. 688 pp; 64 pls.	Morphology; Illustrations
Lange-Bertalot H. 1980. Zur taxonomischen Revision einiger ökologisch wichtiger «Naviculae lineolatae» Cleve. Die Formenkreise um Navicula lanceolata, N. viridula, N. cari. Cryptogamie: Algologie. 1(1): 29-50.	Morphology; Type Illustration; Taxonomy;
Krammer K., Lange-Bertalot H. 1986. Süßwasserflora Mitteleuropas. Bacillariophyceae. 1. Teil. Naviculaceae. Eds Ettl H., Gerloff J., Heynig H., Mollenhauer D., Gustav Fischer Verlag, Stuttgart. 876 pp	Morphology; Type Illustration
Lange-Bertalot H. 2001. Navicula sensu stricto. 10 Genera Separated from Navicula sensu lato. Frustulia. Ruggell, A.R.G. Gantner. 526 pp	Morphology; Illustrations; Ecology;
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., Ector L. Navicula angusta Grunow; 1860; 528. 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. 2025 . Freshwater Diatom Flora of Britain and Ireland. Amgueddfa Cymru - National Museum Wales. Available online at https://naturalhistory.museumwales.ac.uk/diatoms/browsespecies.php?-recid=3523. [Accessed: 6 April 2025].

Image Gallery

Record last modified: 27/12/2020