| Catalogue of Diatom Names, On-Line Version, Updated 19 Sep 2011 |
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| Sphenella F.T. Kützing Nov 1844, pg. 83 | |
| Generitype | not designated |
| Designated by | |
| Year Designated | 0 |
| Nomenclatural status | valid |
| Recent revisions | |
| Comments | This name was first introduced as subgenus of Frustulia in Kützing 1834 (1833) (ref. 000594), p. 556 (p. 28 of reprint), four species were included, Frustulia olivacea Kütz., F. lyngbyei Kütz., F. bidentata Kütz. and F. paludosa Kütz. In 1844 (ref. 000595), Kützing had a slightly different use of Sphenella (as a genus): he placed olivaceum in Gomphonema (p. 85), while under Sphenella (described p. 83) he placed 7 species, retaining out of the four species originally in the subgenus Sphenella only Stylaria paludosa (with a new name Sphenella vulgaris). The name was rejected vs. Gomphonema in ICBN 1956 (ref. 006916), p. 200; the name was no longer rejected in the subsequent codes. Sphenella Kützing was treated as a nom. rej. vs. Gomphonema because at the time (1956) Gomphonema was conserved as of Hustedt 1930; it became a possible later taxonomic synonym when the place of publication of the conserved name was taken back to Ehrenberg 1832 (ICBN 1961, ref. 006910). |
| Published in |
Kützing, F.T. 1844 (ref. 595) Die Kieselschaligen. Bacillarien oder Diatomeen. Nordhausen. 152 pp., 30 pls. |