Planothidium victorii P.M.Novis, J.Braidwood & C.Kilroy; 2012; 22
Synonymy
Planothidium caputium J. Zimmermann & R. Jahn
Achnanthes rostrata var. magna F. Straub
Key references
Novis P.M., Braidwood J., Kilroy C. 2012. Small diatoms (Bacillariophyta) in cultures from the Styx River, New Zealand, including descriptions of three new species. Phytotaxa. 64: 11-45.
Jahn R., Abarca N., Gemeinholzer B., Mora D., Skibbe O., Kulikovskiy M., Gusev E., Kusber W.-H., Zimmermann J. 2017. Planothidium lanceolatum and Planothidium frequentissimum reinvestigated with molecular methods and morphology: four new species and the taxonomic importance of the sinus and cavum. Diatom Research. 32(1): 75-107.
Wetzel C.E., Van de Vijver B., Blanco S., Ector L. 2019. On some common and new cavum-bearing Planothidium (Bacillariophyta) species from freshwater. Fottea, Olomouc. 19(1): 50-89.
Morphology
Size
4.5-24.3 long, 3.6-7.3 wide (Jahn et al. 2017, Wetzel et al. 2019).
Shape
Valves elliptic-lanceolate with broadly rounded ends, not or only slightly protracted.
Symmetry
Isopolar, heterovalvar.
Striae
Raphe valve: radiate throughout; rapheless valve: more or less parallel in valve centre becoming radiate towards valve ends.
Axial area
Narrow, filiform on both valves.
Central area
Raphe valve: central area transvere elliptical or rectangular ; rapheless valve: central area absent.
Raphe
Straight, filiform with expanded proximal raphe ends.
4.5-24.3 long, 3.6-7.3 wide (Jahn et al. 2017, Wetzel et al. 2019).
Shape
Valves elliptic-lanceolate with broadly rounded ends, not or only slightly protracted.
Symmetry
Isopolar, heterovalvar.
Striae
Raphe valve: radiate throughout; rapheless valve: more or less parallel in valve centre becoming radiate towards valve ends.
Axial area
Narrow, filiform on both valves.
Central area
Raphe valve: central area transvere elliptical or rectangular ; rapheless valve: central area absent.
Raphe
Straight, filiform with expanded proximal raphe ends.
Literature
References are given in chronological order.
Reference |
Citation |
|---|---|
| Novis P.M., Braidwood J., Kilroy C. 2012. Small diatoms (Bacillariophyta) in cultures from the Styx River, New Zealand, including descriptions of three new species. Phytotaxa. 64: 11-45. | Morphology; Taxonomy; Description; Type Illustration; Biology |
| Jahn R., Abarca N., Gemeinholzer B., Mora D., Skibbe O., Kulikovskiy M., Gusev E., Kusber W.-H., Zimmermann J. 2017. Planothidium lanceolatum and Planothidium frequentissimum reinvestigated with molecular methods and morphology: four new species and the taxonomic importance of the sinus and cavum. Diatom Research. 32(1): 75-107. | Morphology; Biology; Type Illustration; |
| Mora D., Carmona J., Jahn R., Zimmermann J., Abarca N. 2017. Epilithic diatom communities of selected streams from the Lerma-Chapala Basin, Central Mexico, with the description of two new species. PhytoKeys. 88: 39-69. | Ecology; Illustrations |
| Wetzel C.E., Van de Vijver B., Blanco S., Ector L. 2019. On some common and new cavum-bearing Planothidium (Bacillariophyta) species from freshwater. Fottea, Olomouc. 19(1): 50-89. | Morphology; Taxonomy; Illustrations; |
This page should be cited as:
Van de Vijver B., Jüttner I. Planothidium victorii P.M.Novis, J.Braidwood & C.Kilroy; 2012; 22. 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=4631. [Accessed:
].
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Record last modified: 27/12/2020