Catalogue of Diatom Names, On-Line Version, Updated 19 Sep 2011 |
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Cyclotella (F.T. Kützing) A. de Brébisson 1838, pg. 19 | |
Generitype | T: Cyclotella tecta Hakansson & Ross 1984 (= Cyclotella distinguenda Hustedt) (type conserved) |
Designated by | ICBN 1988 (ref. 006921), p. 119 |
Year Designated | 1988 |
Nomenclatural status | nom. cons. |
Recent revisions | Hakansson 1990 (ref. 001072), Hakansson & Ross 1984 (ref. 006914), Loseva 1982 (006904), Lowe 1975 (ref. 004854), Flower 1993 (ref. 006574) |
Comments | Preconservation type is Cyclotella operculata. Conserved with a different type (C. tecta) (see ICBN 1988, p. 119, ref. 006921).Name conserved with a conserved type. Preconservation type is Cyclotella operculata (Ag.) Bréb. Cyclotella is first introduced in Kützing 1834 (ref. 000594) p. 535 (p. 9 of reprint) as a subgenus of Frustulia Ag., there was then only one species in this group: Frustulia operculata Ag. A. de Brébisson (1838, ref. 000161) adopts the Cyclotella group of Kützing as a genus (p. 19), he includes 2 species: Cyclotella ovalis and Cyclotella operculata (p. 20), no generitype designated by Brébisson, however Cyclotella operculata, the type of the subgenus (by monotypy) automatically became the type of the genus. Boyer 1927 (ref. 000155), p. 36 listed Cyclotella operculata (Ag.) Bréb. 1838 (= Frustulia operculata Ag. 1827) as the type. Håkansson & Ross (1984, Taxon 33: 529, ref. 006914) proposed to choose C. tecta Håkansson & Ross (= Specimen Kützing 139, BM). Note: see genus Pyxidicula Ehrenberg 1834 whose type species is Pyxidicula operculata (Frustulia operculata). |
Published in |
Brébisson, A. de. 1838 (ref. 161) Considérations sur les Diatomées et essai d'une classification des genres et des espèces appartenant à cette famille. Brée l'Ainé Imprimeur-Libraire, Falaise. 22 pp. |
Cymbophora (F.T. Kützing) A. de Brébisson 1838, pg. 13 | |
Generitype | LT: Cymbophora gastroides Brébisson (= Gomphonema simplex Kützing according to Brébisson)) |
Designated by | Round, Crawford & Mann (1990), p. 687 (ref. 003245). |
Year Designated | 1990 |
Nomenclatural status | valid |
Recent revisions | |
Comments | F.T. Kützing (1833, ref. 000594) p. 565 (p. 37 of reprint) first published this name for a section of Gomphonema Agardh (Gomphonema section Cymbophora). Two species were included in this group, G. simplex Ktz. and G. semiellipticum Ag., and no type was designated. A. de Brébisson (1838, ref. 000161) p. 13 (p. 18 according to Farr et al. 1979) adopts this group as a genus and includes 5 species of Cymbophora :C. gastroides (= Gomphonema simplex according to Brébisson), C. fulva (possibly a synonym of Gomphonema semiellipticum), C. macula, C. ventricosa and C. coffeaeformis, and does not designate a generitype. The two original species of Kützing's section are automatically included in the genus by Brébisson's reference to Kützing, and the lectotype has to be chosen among them. Round, Crawford & Mann (1990) selected C. gastroides (Kütz.) Bréb. as the type of the genus; although this species is not one of the 2 species included by Kützing in the section, because Brébisson considered Frustulia gastroides Kützing 1833 and Gomphonema simplex Kützing 1833 to be synonymous, we consider the genus to be typified with Gomphonema simplex Kützing, and Round, Crawford & Mann (1990) to be the authors of the lectotypification. |
Published in |
Brébisson, A. de. 1838 (ref. 161) Considérations sur les Diatomées et essai d'une classification des genres et des espèces appartenant à cette famille. Brée l'Ainé Imprimeur-Libraire, Falaise. 22 pp. |
Epithema A. de Brebisson 1838, pg. 16 | |
Generitype | LT: Epithema picta (Kutzing) Brebisson 1838 (= Frustulia picta Kutzing) |
Designated by | Round, Crawford & Mann (1990) (ref. 0003245), p. 689 |
Year Designated | 1990 |
Nomenclatural status | valid/illegitimate |
Recent revisions | |
Comments | Introduced p. 16 as Epithema Nob., followed by a description in French, followed by list of 3 species: 1. E. pictum Nob. Frustulia picta Kütz., 2. E. adnatum Nob., Frustulia adnata Kütz., 3. E. scutulum Nob. No type originally designated. Later homonym of Epithema Blume 1826. Synonym (substitute name): Epithemia Kützing 1844. |
Published in |
Brébisson, A. de. 1838 (ref. 161) Considérations sur les Diatomées et essai d'une classification des genres et des espèces appartenant à cette famille. Brée l'Ainé Imprimeur-Libraire, Falaise. 22 pp. |
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