Fragilaria battarbeeana Van de Vijver, M.Kelly, C.E.Wetzel & Ector; 2021; 144
Key references
Van de Vijver B., Williams D.M., Kelly M., Jarlman A., Wetzel C.E., Ector L. 2021. Analysis of some species resembling Fragilaria capucina (Fragilariaceae, Bacillariophyta). Fottea. 21(2): 128-151.
Morphology
Size
Length: 12-38 µm, width: 3.5-5 µm (Van de Vijver et al. 2021).
Shape
Valves lanceolate with slightly convex margins, gradually tapering towards protracted, rostrate to capitate poles.
Symmetry
Isopolar, bilaterally symmetrical.
Striae
Striae parallel to very weakly radiate, more radiate near poles, 18-19 in 10 µm.
Axial area
Sternum very narrow.
Central area
Asymmetrical central area, unilaterally expanded, forming distinct hyaline zone on one side of valve, ghost striae rarely observed; striae on other side of valve hardly shortened.
Other features
Frustules solitary.
SEM morphology
Striae uniseriate with small, rounded areolae.
Valve margin with continuous row of conical spines, poles without spines.
Valve with one rimoportula near or at pole.
Length: 12-38 µm, width: 3.5-5 µm (Van de Vijver et al. 2021).
Shape
Valves lanceolate with slightly convex margins, gradually tapering towards protracted, rostrate to capitate poles.
Symmetry
Isopolar, bilaterally symmetrical.
Striae
Striae parallel to very weakly radiate, more radiate near poles, 18-19 in 10 µm.
Axial area
Sternum very narrow.
Central area
Asymmetrical central area, unilaterally expanded, forming distinct hyaline zone on one side of valve, ghost striae rarely observed; striae on other side of valve hardly shortened.
Other features
Frustules solitary.
SEM morphology
Striae uniseriate with small, rounded areolae.
Valve margin with continuous row of conical spines, poles without spines.
Valve with one rimoportula near or at pole.
Literature
References are given in chronological order.
Reference |
Citation |
|---|---|
| Van de Vijver B., Williams D.M., Kelly M., Jarlman A., Wetzel C.E., Ector L. 2021. Analysis of some species resembling Fragilaria capucina (Fragilariaceae, Bacillariophyta). Fottea. 21(2): 128-151. | Morphology; Taxonomy; Type Illustration; Description |
This page should be cited as:
Van de Vijver B., Kelly M.G., Wetzel C.E., Ector L., Williams D.M., Jüttner I. Fragilaria battarbeeana Van de Vijver, M.Kelly, C.E.Wetzel & Ector; 2021; 144. 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=4675. [Accessed:
].
Image Gallery
Record last modified: 15/12/2021