Institute for Biodiversity Science and Sustainability
Catalogue of Diatom Names, On-Line Version, Updated 19 Sep 2011
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Fragilaria hyemalis Ralfs 1843, p. 109; pl. 2, fig. 5
StatusInvalid?
Published inRalfs, J. 1843 [ref. 001482]. On the Diatomaceae. Annals and Magazine of Natural History 12:104-111, pl. 2.
Type     INA card not found. Click here to check this name in the INA website.
CollectorAssessment of record accuracyuncertain/not verified

Fragilaria pectinalis sensu Ralfs 1843, p. 107; pl. 2, fig. 3 a-c
StatusInvalid?
Published inRalfs, J. 1843 [ref. 001482]. On the Diatomaceae. Annals and Magazine of Natural History 12:104-111, pl. 2.
Type     INA card not found. Click here to check this name in the INA website.
CollectorAssessment of record accuracyuncertain/not verified

Fragilaria pectinalis var. beta Ralfs 1843, p. 107; pl. 2, fig. 3 d
StatusValid
Published inRalfs, J. 1843 [ref. 001482]. On the Diatomaceae. Annals and Magazine of Natural History 12:104-111, pl. 2.
Type     INA card not found. Click here to check this name in the INA website.
CollectorAssessment of record accuracylikely accurate

Fragilaria pectinalis var. undulata Ralfs 1843, p. 107; pl. 2, fig. 3d
StatusValid
Published inRalfs, J. 1843 [ref. 001482]. On the Diatomaceae. Annals and Magazine of Natural History 12:104-111, pl. 2.
TypeLT: Slide BM 67796 in BM (designated by Tuji & Williams 2005, p. 59, ref. 012824)Click here to view INA card. Click here to check this name in the INA website.
Type LocalityArdudwy near Barmouth, North Wales, UKLanguage of descriptionE
CollectorAssessment of record accuracylikely accurate
List of nomenclatural synonymsHimantidium pectinale var. undulatum (Ralfs) Grunow 1862
Himantidium undulatum (Ralfs) W. Smith 1856
Eunotia pectinalis f. undulata (Ralfs) Hustedt 1957
Eunotia pectinalis var. undulata (Ralfs) Rabenhorst 1864
Eunotia pectinalis f. undulata (Ralfs) A. Berg 1939

Fragilaria virescens Ralfs 1843, p. 110; pl. 2, fig. 6
StatusValid
Published inRalfs, J. 1843 [ref. 001482]. On the Diatomaceae. Annals and Magazine of Natural History 12:104-111, pl. 2.
Type     Click here to view INA card. Click here to check this name in the INA website.
Type LocalityLanguage of descriptionE
CollectorAssessment of record accuracylikely accurate
List of nomenclatural synonymsNematoplata virescens (Ralfs) Kuntze 1898
Diatoma virescens (Ralfs) Hassall 1845
Fragilariforma virescens (Ralfs) Williams & Round 1988
Neofragilaria virescens (Ralfs) Williams & Round 1987

Tessella (Tessela) catena Ralfs 1843, p. 104; pl. 2, fig. 1
StatusValid
Published inRalfs, J. 1843 [ref. 001482]. On the Diatomaceae. Annals and Magazine of Natural History 12:104-111, pl. 2.
Type     INA card not found. Click here to check this name in the INA website.
CollectorAssessment of record accuracylikely accurate

Tetracyclus lacustris Ralfs 1843, p. 105; pl. 2, fig. 2
StatusValid
Published inRalfs, J. 1843 [ref. 001482]. On the Diatomaceae. Annals and Magazine of Natural History 12:104-111, pl. 2.
Type     Click here to view INA card. Click here to check this name in the INA website.
Type LocalityLanguage of descriptionE
CollectorAssessment of record accuracylikely accurate
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