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Catalogue of Diatom Names, On-Line Version, Updated 19 Sep 2011
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Biddulphia S.F. Gray Nov/01/1821, p. 294
Generitype LT: Biddulphia biddulphiana (J.E. Smith) Boyer 1901 (= Conferva biddulphiana J.E. Smith 1807, = Biddulphia pulchella S.F. Gray 1821, nom. illeg.)
Designated by Boyer (000155), p. 117
Year Designated 1927
Nomenclatural status valid
Recent revisions
Comments Three species originally included: B. pulchella (= Conferva biddulphiana - Diatoma biddulphianum Ag.), B. obliquata (= Conferva obliquata) and B. stipitata (= Conferva stipitata), no generitype designated. Farr et al. 1979 indicate that the type was designated by Kützing 1833, p. 567, 579 (ref. 000594); Kützing however did not make such a designation, he merely listed B. pulchella along with a new species B. vesiculosa Kütz. (p. 82 of reprint) while transferring Conferva obliquata to genus Isthmia (p. 51 of reprint) and treating Conferva stipitata as a synonym of Achnanthes longipes Ag. (p. 48 of reprint), thus leaving only one of the original species of Gray (B. pulchella) in genus Biddulphia. Kützing's action does not constitute lectotypification which is effected by Boyer 1927.
Published in

Gray, S.F. 1821  (ref. 390)


In: A natural arrangement of British plants according to their relations to each other as pointed out by Jussieu, De Candolle, Brown, etc., including those cultivated for use; with an introduction to botany, in which the terms newly introduced are explained; illustrated by figures. 2 vols., 824 pp., 21 colored plates incl. frontis. and 757 p. Baldwin, Cradock & Joy, London,, Vol:1, 293-295.